2 Subtraction Concepts - Macmillan/McGraw-Hill

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CHAPTE R
2
Subtraction Concepts
The
Key Vocabulary
BIG Idea
How do I take away from a
group and compare groups?
English
subtract
difference
minus (-)
Español
restar
diferencia
resta (-)
Mei, Ella, and Colin in
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Frogs on a Log
Look
at all the
frogs!
Ah-CHOO!
How many
frogs jumped
off!
fifty-seven
57
Name
Write how many.
1.
2.
Draw circles to show how many.
6
3.
3
5.
4
X on 2 frogs. Write how many are left.
6.
Online Option
58
fifty-eight
Take the Online Readiness Quiz.
This page checks skills needed for the chapter.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Put an
4.
Dear Family,
Today my class started the chapter Subtraction Concepts. In
this chapter, I will learn to write subtraction number sentences.
Here are my vocabulary words, an activity we can do, and a list
of books we can look for in our local library.
Love,
Key Vocabulary
Activity
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
s
12 pennie
e
k
a
h
s
Hold and
nds. Then
a
h
d
e
p
p
u
in your c
ve
ands abo
h
r
u
o
y
n
ope
y the
ake awa
T
.
le
b
ta
the
tails
nd on the
la
t
a
th
s
one
nnies
many pe
w
o
H
.
tell
e
sid
our child
y
e
v
a
H
are left?
stor y.
btraction
u
s
e
th
u
yo
Books to Read
Subtraction Action
by Loreen Leedy
Holidayy House, Inc.
subtract to take away
subtraction number sentence
7-3=4
minus
sign
difference
equals
sign
Online Option
See the multilingual eGlossary link at
connectED.mcgraw-hill.com to find out more about these words.
There are 13 languages.
One Less Fish
by Kim Michelle Toft
Charlesbridge
Publishing
Ten Sly Piranhas:
A Counting Story
in Reverse
by William Wise
Penguin Group USA
fifty-nine
59
Estimada familia:
Hoy mi clase comenzó el capítulo Conceptos de resta.
Aprenderé a mostrar y escribir oraciones numéricas de
resta. A continuación están mis palabras del vocabulario,
una actividad que podemos hacer y una lista de libros
que se encuentran en nuestra biblioteca local.
Cariños,
Vocabulario clave
d
Activida
s
mézclelo
,
s
ie
n
n
e
p
Tome 12
bre la
s caer so
lo
je
é
d
y
ron
bien
que caye
s
lo
e
r
ti
s
mesa. Re
tos pennie
n
á
u
C
¿
.
o
en escud
su
rmita que
e
P
?
n
a
d
que
istoria
ente la h
u
c
le
o
niñ
ta.
de la res
restar eliminar o quitar
oración numérica de resta
7-3=4
signo de
resta
diferencia
signo de
igual
Opción en línea
Visiten el eGlosario políglota en
connectED.mcgraw-hill.com para aprender más acerca de estas
palabras. Hay 13 idiomas.
Restar
de Lisa Trumbauer
Red Brick
60
sixty
Vaya Appetito Tiene el Zorrito
de Claudia Rueda
Serres Ediciones
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Libros recomendados
Multi-Part Lesson
Name
PART
A
B
1
C
D
E
F
Subtraction
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
First use this page as a workmat. Then draw
pictures to show how you solved the problem.
GLE 0106.2.3 Develop strategies for learning basic addition facts and
related subtraction facts. Also addresses GLE 0106.1.1.
Subtraction Concepts
sixty-one
61
G
Use
. Create subtraction stories. Write a
subtraction sentence.
1.
2.
part
part
whole
whole
part
take away
is
part
.
3.
take away
.
4.
part
part
whole
take away
sixty-two
is
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
whole
part
62
is
part
.
take away
is
.
Subtraction Concepts
Multi-Part Lesson
Name
PART
A
B
1
C
D
E
F
G
Subtraction Stories
Get Ready
I had 6 crayons on the table.
I took away 1 crayon. There
are 5 crayons left on the table.
Main Idea
I will use counters to
model subtraction
stories.
Use
to show the
number story.
Count how many are left.
Check
Tell a number story to your partner. Use
.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
1.
How many kites are left flying?
kites
How many birds are left in the birdbath?
birds
2.
3. E Talk Math How are addition and subtraction
stories different?
GLE 0106.2.3 Develop strategies for learning basic addition facts and
related subtraction facts. Also addresses GLE 0106.1.1.
Subtraction Concepts
sixty-three
63
Practice
Tell a number story to your partner. Use
.
4.
How many ants are on the leaf?
ants
How many butterflies are left?
butterflies
How many apples are left on the tree?
apples
5.
6.
to solve.
7. There are 8 bees near the hive.
3 bees fly away.
How many bees stayed?
bees
64
sixty-four
Math at Home Activity: Tell subtraction stories to your child. Have
your child use buttons or pennies to model each story.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Use
1
Multi-Part Lesson
Name
PART
A
B
C
D
E
F
G
Model Subtraction
Get Ready
When you know the whole and one part, you
can subtract to find the other part.
Main Idea
I will subtract parts
from a whole.
Vocabulary
subtract
Part
Part
Part
Whole
Part
Part
Whole
Part
Part
Part
2
7
2
Whole
Whole
9
9
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Check
Use WorkMat 3 and
1.
Part
Part
to subtract.
2.
Part
Part
4
3.
2
Part
Part
6
Whole
Whole
Whole
5
10
9
4. E Talk Math You have 10 counters. 3 of the
counters are yellow. Do you have more
than 7 red counters? Explain.
GLE 0106.2.3 Develop strategies for learning basic addition facts and
related subtraction facts.
Subtraction Concepts
sixty-five
65
Practice
Use WorkMat 3 and
5.
Part
Part
to subtract.
6.
Part
Part
3
7.
3
Whole
Whole
8
7
Part
Part
8.
Part
Part
4
9.
1
Whole
Whole
9
4
Part
Part
10.
Part
Part
4
Whole
Whole
6
5
Part
Part
6
12.
Part
Part
5
Whole
Whole
7
7
13. E Write Math If the whole is 10 and one of
the parts is 10, what is the other part? Explain.
66
sixty-six
Math at Home Activity: Have your child use small objects such as
buttons, beans, or pennies to model subtraction.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
11.
3
Multi-Part Lesson
Name
PART
A
B
1
C
D
E
F
G
Subtraction Number Sentences
Get Ready
Main Idea
I will write
subtraction
number sentences.
ces.
Vocabulary
subtraction
number
sentence
difference
minus (-)
5 - 2 = 3 is a subtraction number sentence .
3 is the difference .
See
Say 5
Write 5
minus
-
2
2
equals
=
3
3
Check
5
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
tence.
Write the subtraction number sentence.
1.
8 minus 3 equals
8
2.
4. E
3
5
5
8
3
.
3.
Talk Math What does - mean?
GLE 0106.1.1 Use mathematical language, symbols, and definitions while
developing mathematical reasoning. Also addresses GLE 0106.2.3.
Subtraction Concepts
sixty-seven
67
Practice
1
Write the subtraction number sentence.
ce.
2
1
5.
7.
8.
9.
10.
11.
12.
13.
68
sixty-eight
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
6.
Name
Practice
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Write the subtraction number sentence.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
Subtraction Concepts
sixty-nine
69
Solve.
24. Ming has 7 teddy bears.
She gives 4 of them away.
How many teddy bears
does she have left?
teddy bears
25. Kayla has 4 rockets. She
gives some rockets away.
She has 2 rockets left. How
many rockets did she give
away?
rockets
cars
27. Critical Thinking Pick two
numbers. Subtract. Write the
subtraction number sentence
on another paper. Repeat. How
many subtraction sentences can
you write?
70
seventy
Math at Home Activity: Using buttons, beans, or pennies, have your
child act out subtraction stories. Have him or her write subtraction
number sentences for the stories.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
26. There are 5 cars racing.
3 cars stop. How many
cars are still racing?
Name
Extra
Practice
e
Write the subtraction number sentence.
1.
2.
3.
4.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
5.
6.
7.
Subtraction Concepts
seventy-one
71
Subtracting
to Swim
Subtraction
7
7
6
7
Use
. Subtract the number on the
1 4 from the number on the 5 .
5
1 4 5
5
You Will Need
Play with a partner. Take turns.
Roll both 56 1 4 .
6
5
Say your answer. Move that many
spaces on the game board.
The first person to swim around the
coral reef wins!
START
E
N
D
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
72
seventy-two
Subtraction Concepts
Multi-Part Lesson
Name
PART
A
B
1
C
D
E
F
G
Subtract 0 and All
Get Ready
When you subtract 0
you have the same
number left.
Main Idea
I will subtract 0 or
find a difference of 0.
When you subtract
all, you have 0 left.
4
0 = 4
4
4 = 0
Check
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Write the subtraction number sentence.
Find the difference.
1.
2.
8
3.
5. E
8 = 0
4.
Talk Math Why do you get zero when you subtract all?
GLE 0106.2.3 Develop strategies for learning basic addition facts and
related subtraction facts. Also addresses GLE 0106.1.1.
Subtraction Concepts
seventy-three
73
Practice
Write the subtraction number sentence.
Find the difference.
6.
7.
8.
9.
Find the difference. Use
if needed.
10. 1 - 0 =
11. 9 - 9 =
12. 4 - 2 =
13. 3 - 0 =
14. 6 - 1 =
15. 2 - 0 =
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Write the number sentence.
16. 9 baseball players are
in the locker room. All
9 players run to the
baseball field. How
many players are left in
the locker room?
players
74
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Math at Home Activity: Give your child 3 objects, have them show
3 - 0 and 3 - 3 using the objects.
Multi-Part Lesson
Name
PART
A
B
1
C
D
E
F
G
Vertical Subtraction
You can write
subtraction sentences
two ways.
Get Ready
You can subtract across or down.
The answer is the same.
Main Idea
I will subtract
across and down.
xx
x
xx
x
7
-
3
=
7
- 3
4
4
Check
Subtract.
1.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
x
6
- 1
2.
x
3.
7
- 2
5-1=
4.
9
- 3
6.
5.
6
- 2
8-3=
7. E Talk Math How is subtracting down like
subtracting across?
GLE 0106.2.3 Develop strategies for learning basic addition facts and
related subtraction facts. Also addresses GLE 0106.1.1.
Subtraction Concepts
seventy-five
75
Practice
Subtract.
8.
9
- 2
10.
9.
7
- 4
8-2=
11.
4
- 2
13.
12.
5
- 1
6-2=
14.
16.
15.
8
- 6
7-5=
Draw a picture to solve.
Then write a number sentence.
17. There are 8 crackers on the table.
Alvin ate 2 crackers.
How many are left?
76
seventy-six
crackers
Math at Home Activity: Use 9 small objects. Show subtraction by
taking some objects away. Have your child write the subtraction sentence.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
8
- 5
Multi-Part Lesson
PART
A
B
1
C
D
E
F
G
Name
Draw a Diagram
Main Idea
Abby had 5 pages of stickers.
She gave Matt 2 pages.
How many pages of
stickers does she
have now?
I will draw a
diagram to solve
a problem.
What do I need to find?
Circle the question.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
How will I solve the problem?
Draw a diagram.
5
2
?
pages
Is my answer reasonable? How do I know?
Subtraction Concepts
GLE 0106.1.2 Apply and adapt a variety of appropriate strategies to
problem solving, including estimation, and reasonableness of the solution.
Also addresses GLE 0106.2.3 and GLE 0106.1.1.
seventy-seven
77
Remember
Draw a diagram to solve.
1. Nick had 6 cherries.
He ate 3 cherries.
How many cherries are left?
cherries
2. Kiah had 6 carrots.
She gave some to Jenni.
Kiah has 4 carrots left.
How many carrots did she give to Jenni?
carrots
apples
4. There are 7 oranges in a box.
Miles eats some oranges.
There are 5 oranges left.
How many oranges did Miles eat?
oranges
78
seventy-eight
Math at Home Activity: Give your child a simple subtraction
problem and have him or her solve it by drawing a diagram.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Draw a diagram to solve.
3. Alberto got 7 apples.
He ate 1 apple.
How many apples does he have now?
Mid-Chapter
Check
Name
Solve.
Fill in the missing part.
1.
Part
Part
2.
Part
Part
3
7
Whole
Whole
7
9
Write the subtraction number sentence.
3.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Subtract.
4.
9
- 3
5.
7-2=
6. There are 9 owls.
3 owls fly away.
How many owls
are left?
owls
Subtraction Concepts
7. There are 6 horses. Some
gallop away. There are
3 horses left. How many
horses galloped away?
horses
seventy-nine
79
Color the squares to show a way to make 6.
Write the addition number sentence.
8.
+
Add. Use
9. 7 + 2 =
=6
if needed.
10. 3 + 2 =
11. 1 + 4 =
12. 5 + 2 =
13. 6 + 2 =
14. 0 + 3 =
Subtract. Use
if needed.
16. 5 - 0 =
17. 4 - 2 =
18. 7 - 2 =
19. 6 - 6 =
20. 9 - 3 =
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
15. 8 - 1 =
Solve.
21. Jake has 5 orange golf balls.
Liz has 3 green golf balls.
How many golf balls do they have in all?
+
80
eighty
=
golf balls
Subtraction Concepts
Name
Multi-Part Lesson
PART
A
2
B
Compare Groups
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
First use this page as a workmat. Then write
how many
and
. Circle the number that
shows more.
GLE 0106.2.3 Develop strategies for learning basic addition facts and
related subtraction facts.
Subtraction Concepts
eighty-one
81
Look at the groups of animals in each picture.
Write how many of each. Circle the number that shows more.
1.
2.
3.
4.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
82
eighty-two
Subtraction Concepts
Multi-Part Lesson
Name
PART
A
2
B
Compare Groups
C
Get Ready
Main Idea
You can use counters to compare .
I will compare
groups of up to
9 objects.
Vocabulary
compare
You can write a subtraction number sentence
to compare. 4 - 2 = 2
red
es
apples
yellow difference
apples
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
There are 2 more
red apples than
yellow apples.
Check
Use
. Write a subtraction number sentence.
Write how many more or fewer.
1. There are 7 big pumpkins. There are
2 small pumpkins. How many more big
pumpkins are there than small pumpkins?
-
=
more big pumpkins
2. E Talk Math What happens when you compare
equal groups?
GLE 0106.2.3 Develop strategies for learning basic addition facts and
related subtraction facts. Also addresses GLE 0106.1.1.
Subtraction Concepts
eighty-three
83
Practice
Use
. Write a subtraction number sentence.
Write how many more or fewer.
3. 9 butterflies are black. 5 butterflies are yellow.
How many fewer butterflies are yellow than black?
-
=
fewer butterflies
4. Sam has 5 green balloons. He also has 3 blue
balloons. How many fewer blue balloons
does he have than green balloons?
-
=
fewer blue balloons
-
=
more yellow paper clips
6. Mia has 3 red kites and 2 yellow kites. How many
fewer yellow kites does she have than red kites?
84
eighty-four
=
fewer yellow kite
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
5. There are 6 yellow paper clips. There are
2 red paper clips. How many more yellow
paper clips are there than red paper clips?
Name
Use
. Write a subtraction number sentence.
Write how many more or fewer.
7. Paul has some puppets. 2 puppets are
ducks. 5 puppets are rabbits. How many
fewer ducks does he have than rabbits?
-
=
fewer ducks
8. There are 9 yellow leaves. There are
2 red leaves. How many more yellow
leaves are there than red leaves?
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
-
=
more yellow leaves
9. Nikki has 6 purple socks. She has 7 green
socks. How many fewer purple socks does
she have than green socks?
-
=
fewer purple sock
10. There are 7 elephants at the zoo. There are
3 lions at the zoo. How many fewer lions
are at the zoo than elephants?
Subtraction Concepts
=
fewer lions
eighty-five
85
Practice
Use
. Write a subtraction number sentence.
Write how many more or fewer.
11. 9 butterflies are red. 5 butterflies are
orange. How many fewer butterflies
are orange than red?
-
=
fewer orange butterflies
12. 8 students play the drums. 7 students play
the trumpet. How many more students
play the drums than trumpet?
-
=
more student
13. How many more
there than
?
are
-
more
86
eighty-six
=
14. How
H
many ffewer
there than
?
-
=
are
fewer
Math at Home Activity: Take a walk outside. Collect leaves or other
objects found in nature. Create two groups with the items you collected
with less than 9 items. Have your child compare the two groups and say a
subtraction number sentence that tells how many more or how many fewer.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Tide pools are shallow holes filled with seawater.
er.
Many animals live in tide pools. Use the
e
picture below to compare the groups.
Multi-Part Lesson
Name
PART
A
B
3
C
D
E
Subtract From
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
First use this page as a workmat. Then draw
a picture that shows a subtraction story.
GLE 0106.2.3 Develop strategies for learning basic addition facts and
related subtraction facts.
Subtraction Concepts
eighty-seven
87
Write a subtraction number sentence for each picture.
1.
-
=
-
=
-
=
2.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
3.
88
eighty-eight
Subtraction Concepts
Multi-Part Lesson
Name
PART
A
B
3
C
D
E
Subtract from 4 and 5
S
Get Ready
Main Idea
I will subtract from
4 and 5.
There are many numbers yyou can subtract
from 4 and 5.
I can subtract 1 from 4.
4–1=3
The difference is 3.
I can subtract 2 from 4.
4–2=2
The difference is 2.
Check
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
. Subtract some cubes. Cross
Start with 4
out
. Write the numbers to show different
ways to subtract from 4.
Subtract from 4
1
1.
4-
=
2.
4-
=
3.
4-
=
4.
4-
=
3
5. E Talk Math What does difference mean
in subtraction?
GLE 0106.2.3 Develop strategies for learning basic addition facts and
related subtraction facts. Also addresses GLE 0106.1.1.
Subtraction Concepts
eighty-nine
89
Practice
Start with 5
. Subtract some cubes. Cross out
Write the numbers.
.
Subtract from 5
5
6.
5-
=
7.
5-
=
8.
5-
=
9.
5-
=
10.
5-
=
0
Find the difference.
12. 4 - 0 =
13. 5 - 2 =
14. 5 - 5 =
15. 4 - 2 =
16. 5 - 0 =
17. Make It Right
Isabel wrote this
subtraction sentence.
Tell why Isabel is wrong. Make it right.
90
ninety
5–2=4
Math at Home Activity: Give your child 5 objects. Have him or her
subtract different numbers from 4 or 5 and tell the difference.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
11. 4 - 1 =
Multi-Part Lesson
Name
A
PART
3
B
C
D
E
Subtract from 6 and 7
S
Get Ready
There are many numbers you can subtract
from 6 and 7.
Main Idea
I will subtract from
6 and 7.
I subtracted 3 from 7.
7–3=4
The difference is 4.
I subtracted 1 from 7.
7–1=6
The difference is 6.
Check
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
. Subtract some cubes.
Start with 6
Find the difference. Write the numbers.
Subtract from 6
1. 6 -
1
=
5
2. 6 -
=
3. 6 -
=
4. 6 -
=
5. 6 -
=
6. 6 -
=
7. E
Talk Math How do you use
to show subtraction?
GLE 0106.2.3 Develop strategies for learning basic addition facts and
related subtraction facts. Also addresses GLE 0106.1.1.
Subtraction Concepts
ninety-one
91
Practice
Start with 7
. Subtract some cubes.
Find the difference. Write the numbers.
Subtract from 7
8. 7 -
=
9. 7 -
=
10. 7 -
=
11. 7 -
=
12. 7 -
=
13. 7 -
=
Find the difference. Use WorkMat 3 and
14. 7 - 5 =
16. 7 -
15. 6 -
=4
17. 6 -
=0
19. 7 - 6 =
20. E Write Math Why is the answer in
subtraction called the difference?
92
ninety-two
Math at Home Activity: Collect a group of 7 objects. Have your
child show you how to subtract from 7. Have him or her write a
subtraction sentence.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
18. 5 - 0 =
=6
.
Multi-Part Lesson
Name
A
PART
3
B
C
D
E
Subtract from 8
S
Get Ready
There are many numbers you can
subtract
8.
sub
ac from 8
Main Idea
I will subtract
from 8.
I subtracted 2 from 8.
8–2=6
The difference is 6.
I subtracted 4 from 8.
8–4=4
The difference is 4.
Check
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Start with 8
. Subtract some cubes.
Find the difference. Write the numbers.
Subtract from 8
1. 8 -
1
=
7
2. 8 -
=
3. 8 -
=
4. 8 -
=
5. 8 -
=
6. 8 -
=
7. E
Talk Math How do you know 8 - 5 = 3?
GLE 0106.2.3 Develop strategies for learning basic addition facts and
related subtraction facts. Also addresses GLE 0106.1.1.
Subtraction Concepts
ninety-three
93
Practice
Use WorkMat 3 and
. Subtract.
8. 7 - 3 =
9. 8 - 5 =
10. 8 - 1 =
11. 8 - 7 =
12. 8 - 0 =
13. 8 - 6 =
14. 8 - 2 =
15. 8 - 4 =
16. 8 - 8 =
17. 5 - 4 =
18. 6 - 5 =
19. 7 - 2 =
20. 8 - 3 =
21. 6 - 2 =
Write the subtraction number sentence to tell
how many purple flowers are in the garden.
94
ninety-four
=
purple flowers
Math at Home Activity: Collect a group of 8 objects. Have your child
show you all the numbers you can subtract from 8. Have him or her write
a subtraction sentence to show each difference.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
22. There are 8 flowers in a garden. 3 of the flowers
are red. The rest are purple. Draw the garden.
Multi-Part Lesson
Name
PART
A
B
3
C
D
E
Subtract from 9
S
Get Ready
There are many numbers
you can subtract from 9.
Main Idea
I will subtract
from 9.
I subtracted 3 from 9.
9–3=6
The difference is 6.
I subtracted 4 from 9.
9–4=5
The difference is 5.
Check
Start with 9
. Subtract some cubes.
Find the difference. Write the numbers.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Subtract from 9
1. 9 -
9. E
1
=
8
2. 9 -
=
3. 9 -
=
4. 9 -
=
5. 9 -
=
6. 9 -
=
7. 9 -
=
8. 9 -
=
Talk Math How do you know when to subtract?
GLE 0106.2.3 Develop strategies for learning basic addition facts and
related subtraction facts. Also addresses GLE 0106.1.1.
Subtraction Concepts
ninety-five
95
Practice
Use WorkMat 3 and
. Subtract.
7
- 5
11.
9
- 3
12.
9
- 2
13.
5
- 3
14.
9
- 0
15.
9
- 5
16.
6
- 2
17.
9
- 4
18.
9
- 8
19.
7
- 7
20.
9
- 6
21.
9
- 9
22.
9
- 7
23.
9
- 1
24.
8
- 3
96
ninety-six
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
10.
Name
Solve. Use WorkMat 3 and
.
25. 7 ladybugs were climbing on a fence.
3 ladybugs flew away. How many ladybugs
were left?
ladybugs
26. 6 pigs were rolling in the mud. 3 pigs
walked away. How many pigs were left
in the mud?
pigs
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
27. There were 5 pears on the tree. 4 pears
fell off the tree. How many pears were
left on the tree?
pear
28. Logical Thinking Mike had 9 hats.
He lost 3 of them. He gave 2 away.
How many hats does he have left?
hats
Subtraction Concepts
ninety-seven
97
Practice
Click on
Click on
.
.
Click on
.
Stamp out 9
Click the
Click the
.
Click 4 of the
you stamped.
29. How many
98
ninety-eight
Click 3 of the
you stamped.
Click the
you stamped.
are left?
are left?
.
Stamp out 9
.
31. How many
.
30. How many
are left?
.
Click 7 of the
.
.
Click 1 of the
32. How many
you stamped.
are left?
Math at Home Activity: Collect a group of 9 objects. Have your child
show you all the numbers you can subtract from 9. Have him or her write
a subtraction number sentence to show each number.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Stamp out 9
Click the
Stamp out 9
.
Multi-Part Lesson
Name
PART
A
B
4
C
Relate Addition and
Subtraction
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
First use this page as a workmat.
Then write a related addition and subtraction fact.
+
=
-
=
GLE 0106.3.2 Understand that addition and subtraction are inverse
operations.
Subtraction Concepts
ninety-nine
99
Use
. Write a subtraction number sentence
for each picture. Then write an addition fact using
the same numbers.
1.
-
=
+
=
-
=
+
=
-
=
+
=
-
=
+
=
2.
3.
100
one hundred
Subtraction Concepts
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
4.
Multi-Part Lesson
Name
PART
A
B
4
C
Relate Addition and Subtraction
R
Get Ready
Main Idea
I will use related
addition and
subtraction facts.
I know that
5 + 2 = 7.
I can use that fact
to find 7 – 2.
They are opposite
or inverse
operations.
Vocabulary
related facts
s
inverse
Related facts use the same
numbers. These facts can
help you add and subtract.
Check
Identify an addition fact. Use WorkMat 3 and
to find a related subtraction fact. Write both facts.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
1.
Part
Part
3
6
2.
Part
Part
2
4
Whole
Whole
9
6
=
=
=
=
3. E Talk Math Explain how addition and subtraction
are related.
GLE 0106.3.2 Understand that addition and subtraction are inverse
operations.
Subtraction Concepts
one hundred one
101
Practice
Use WorkMat 3 and
to find related
subtraction facts. Write the facts.
4. 6 + 3 = 9
5. 2 + 4 = 6
=
=
=
=
6. 1 + 4 = 5
7. 3 + 4 = 7
=
=
=
=
8. 5 + 3 = 8
9. 2 + 3 = 5
=
=
=
=
10. 7 + 1 = 8
7-1=6
8-1=7
8-3=5
11. 2 + 4 = 6
6-6=0
9-6=3
6-2=4
102
one hundred two
Math at Home Activity: Write an addition or subtraction sentence
using numbers 1–9. Have your child write a related addition or
subtraction fact.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Circle the subtraction sentence that you could
use to check each addition sentence.
Multi-Part Lesson
PART
A
B
4
C
Name
Main Idea
I will choose
a strategy to
solve a
problem.
I had 5 toy cars. I let
Rex play with 2 of the
cars. How many cars do
I have left?
Your Mission:
Find th
the number
b off cars
Joey had left.
What do I need to find?
Circle the question.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
How will I solve the problem?
One way is to act it out.
cars
Is my answer reasonable? How do I know?
Subtraction Concepts
GLE 0106.1.2 Apply and adapt a variety of appropriate strategies to
problem solving, including estimation, and reasonableness of the solution.
Also addresses GLE 0106.3.2.
one hundred three
103
• Act it out
• Draw a diagram
• Write a number sentence
Choose a strategy. Solve.
1. Lena had 6 books.
She gave 2 to her sister.
How many books does Lena have left?
books
2. Jessica caught 4 frogs.
3 hopped away. How many
frogs does Jessica have now?
frog
9
3
paper clips
?
4. Marcus ate 5 crackers. Shani
ate some crackers. Together they
ate 9 crackers. How many crackers
did Shani eat?
crackers
104
To assess mastery of GLE 0106.1.1, see
your Tennessee Assessment Book.
Math at Home Activity: Take advantage of problem-solving
opportunities during daily routines such as riding in the car, bedtime,
doing laundry, putting away groceries, planning schedules, and so on.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
3. Tate has 9 paper clips.
She gave Elena 3 paper clips.
How many paper clips does
Tate have now?
Rosa and her sister
planted a flower garden.
This book belongs to
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Count the petals on this flower.
petals on this flower.
petals
If 3 petals fall off how many petals
will be left?
There are
flower petals
D
FOLD DOW N
A
B
roots
roots
lleaf
eaf
stem
stem
flower
flower
Flowers can also grow in fields.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
flowers
Rosa picked 9 flowers. She gave 7 to
her mother. How many flowers did
she have left?
C
Chapter
Review/Test
Name
Vocabulary
Circle the correct answer.
1. minus
2. subtraction number sentence
7-5=2
-
+
5+4=9
Concepts
Fill in the missing part.
3.
Part
Part
4.
Part
Part
5
2
Whole
Whole
6
8
Write the subtraction number sentence.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
5.
xxxxxxx
Subtract.
6.
7.
7-3=
Subtraction Concepts
9-4=
one hundred seven
107
Write a subtraction number sentence to
tell how many fewer.
8.
There were 5 strawberries and 3 cherries in
the bowl. How many fewer cherries were there?
-
=
Find the difference. Use
fewer cherries
if needed.
9. 8 - 1 =
10. 5 - 1 =
11. 4 - 2 =
12. 7 - 2 =
13. 6 - 5 =
14. 8 - 1 =
Write the related subtraction facts.
16. 2 + 5 = 7
17. There are 7 dogs
in the park. 3 dogs go
home. How many dogs
are left?
18. Cliff ate 5 apples.
Ali ate 2 apples.
How many more apples
did Cliff eat than Ali?
dogs
108
one hundred eight
more apples
Subtraction Concepts
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
15. 6 + 2 = 8
Test
Practice
Name
Listen as your teacher reads each problem.
Choose the correct answer.
A.
B.
6-4=
2
4
6
10
6 - 12 = 4
12 - 4 = 8
8 + 4 = 12
12 + 4 = 16
Listen as your teacher reads each problem.
Choose the correct answer.
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
1. 4 - 4 =
0
3.
1
2
+
=
-
>
3
2.
4.
11
7
Subtraction Concepts
6
4
8-6=2
8-3=5
2+6=8
4+4=8
one hundred nine
109
5.
8.
5+3=8
5-3=2
3+2=5
8-3=5
8-2=5
6+3=
6
7
9
10
9. 6 birds are sitting in a
tree. 0 birds fly away.
How many birds are
sitting in the tree?
6.
7-1=7
7-7=0
7 + 7 = 14
14 - 7 = 7
3
4
5
balloons
110
one hundred ten
Subtraction Concepts
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
10. Tory has 5 balloons.
Rona has some balloons.
Together they have 7
balloons. How many
balloons does Rona have?
7. 8 - 3 =
2
birds
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