Addition & Subtraction A
Teacher Guide
Letter: Lessons 11–15
Addition & Subtraction A: Addition with sums up to 100
Reduced Teacher Guide, pages 48–49
6
Do The Math Program Sampler
hmhco.com/DoTheMath
7
See
pages 10–13
for full
lesson.
See
pages 14-16
for full
lesson.
Addition & Subtraction A
Teacher Guide
Planner: Lessons 11–15
Addition & Subtraction A: Addition with sums up to 100
Reduced Teacher Guide, pages 50–51
8
Do The Math Program Sampler
hmhco.com/DoTheMath
9
Addition & Subtraction A
Teacher Guide
Lesson 13
Addition & Subtraction A: Addition with sums up to 100
Reduced Teacher Guide, pages 60–61
10
Do The Math Program Sampler
hmhco.com/DoTheMath
11
Addition & Subtraction A
Teacher Guide
Lesson 13 (continued)
Addition & Subtraction A: Addition with sums up to 100
Reduced Teacher Guide, pages 62–63
12
Do The Math Program Sampler
hmhco.com/DoTheMath
13
Addition & Subtraction A
Teacher Guide
Lesson 15
Addition & Subtraction A: Addition with sums up to 100
Reduced Teacher Guide, pages 68–69
14
Do The Math Program Sampler
hmhco.com/DoTheMath
15
Show What You Know
DIRECTIONS
Ü Read the word problem.
Ü Color the hundred grid to show the addition.
Ü Complete the equations.
1
Addition & Subtraction A
Annotated WorkSpace
Tom counted 36 goats.
There were 10 more.
How many were there in all?
36 ! 10 " 46
Show What You Know
36 !
DIRECTIONS
Ü Read the word problem.
1
2
9
9
Ü Color the hundred grid to show the addition.
Ü Complete the equations.
1
4
40 ! 6 "
2
45 !
50 ! 5 "
1
61 !
9
70 ! 1 "
2
10
15
20
Tom counted 45 pirates.
There were 10 more.
How many were there in all?
25
" 50
38 39
35
55
52
53
57
58
71
" 70
80
71
81
91
Home Note: Your child uses a hundred
grid to add 10 to a two-digit number.
5
11
Tom counted 61 bears.
There were 10 more.
How many were there in all?
61 ! 10 "
46
46
45 ! 10 " 55
3
" 40
Use patterns to write
the number.
Look at the shaded square.
Tom counted 45 pirates.
There were 10 more.
How many were there in all?
5
99 100
100
" 40
Lesson 15
23
24
Lesson 15
90
96 97
Home Note: Your child uses addition patterns to write numbers on a hundred chart.
TM & © Scholastic Inc. All rights reserved.
36 !
TM & © Scholastic Inc. All rights reserved.
40 ! 6 "
Tom counted 36 goats.
There were 10 more.
How many were there in all?
36 ! 10 " 46
4
99 is
before 100.
99 is below 9.
Lesson 15
To review
the full-size
Annotated Teacher
Version of this
WorkSpace see
page 17.
Show What You Know
DIRECTIONS
45 ! 10 " 55
45 !
5
50 ! 5 "
3
" 50
55
Tom counted 61 bears.
There were 10 more.
How many were there in all?
61 ! 10 "
61 !
9
" 70
71
©
70 ! 1 "
71
Home Note: Your child uses a hundred
grid to add 10 to a two-digit number.
Addition & Subtraction A: Addition with sums up to 100
Reduced Teacher Guide, page 70
16
Do The Math Program Sampler
Lesson 15
23
Addition & Subtraction A: Addition with sums up to 100
Reduced Annotated WorkSpace, page 23
hmhco.com/DoTheMath
17