NAME
UNIT 8 STUDY GUIDE
Dear parents,
These are samples of math problems that are being covered in unit 8. We are working
on using a variety of ways to solve addition and subtraction problems. Your student
should practice solving them using a variety of strategies too. They can complete a few
problems nightly; please do not have them complete all 6 pages in 1 sitting. Showing their
thinking is very important to their understanding. Please make sure your students are
not only coming up with the correct answer, but using a strategy they can understand
and explain clearly.
These do not need to be returned to school !
Thank you for your support.
The First Grade Math Team.
What is the sum? Use a strategy to
solve & SHOW YOUR THINKING.
12 + 8 = __________________
What is the sum? Use a strategy to
solve & SHOW YOUR THINKING.
11 + 5 = __________________
What is the difference? Use a
strategy to solve & SHOW YOUR
THINKING.
15 – 6 = __________________
What is the difference? Use a
strategy to solve & SHOW YOUR
THINKING.
14 – 5 = __________________
What is the difference? Use a
strategy to solve and show your
thinking.
17
— 9
What is the difference? Use a
strategy to solve and show your
thinking.
13
— 5
There are 11 dogs in the yard. 6 more
dogs get in the yard. How many dogs are
in the yard now? Solve and show your
thinking.
There are 13 birds on a bird feeder. 5
more birds get on the bird feeder. How
many birds are on the bird feeder now?
Solve and show your thinking.
There are ________ dogs in the yard.
There are ________ birds on the bird
feeder.
What is the difference? Show
your thinking.
50 — 20 = ________
What is the difference? Show
your thinking.
40 — 10 = ________
How many tens are in the
difference? Show your thinking.
30 — 20
________ tens
How many tens are in the
difference? Show your thinking.
70 — 30
________ tens
Dan has 30 pencils. He went to the
school and gave some away. Now he
has 20 pencils.
Pat has 60 marbles. She went to her
friends and gave some away. Now she
has 20 marbles.
How many pencils did he give away?
Show your thinking.
How many marbles did she give away?
Show your thinking.
Huma has 30 snow balls. 20 are big.
The rest are small
How many snow balls are small?
Show your thinking.
She gave away ________ snowballs
Maya has 60 hats 20 are red. The
rest are small
How many hats are small? Show
your thinking.
________ hats are small.
What is the sum? Show your
thinking.
What is the sum? Show your
thinking.
26 + 5 = ________
38 + 7 = ________
What is the sum? Show your
thinking.
What is the sum? Show your
thinking.
42 + 9 = ________
67 + 6 = ________
Show how you can count by tens to
add. Write the sum.
56 + 30 = ________
Show how you can count by tens to
add. Write the sum.
44 + 20 = ________
Write the sum. Use tens and
ones to add. Show your
thinking.
Write the sum. Use tens and
ones to add. Show your
thinking.
26
+ 12
Tens
55
+ 13
Ones
How many tens and ones are in
the sum? Show your thinking.
34
+ 15 = ________
Tens
Ones
How many tens and ones are in
the sum? Show your thinking.
53
+ 45 = ________
_______tens and______ ones _______tens and______ ones
Solve and show your thinking.
39 + 20 = ________
Solve and show your thinking.
47 + 30 = ________
Pam has 32 books. She collects 14 more
books. How many books does Pam have?
Show your thinking.
Aimee has 53 pictures. She collects 21
more pictures. How many pictures does
Aimee have? Show your thinking.
Kate sees 43 cars. Jim sees 24 cars.
How many cars do they see in all?
Show your thinking.
Liam has 35 cards. Ayan has 23 cards.
How many cards do they have in all?
Show your thinking.