Addition

Addition

Subtraction

Estimation

Properties

Random

100

37+41=

78

100

87-23=

64

100

Estimate the sum of 78+89.

170

100

Which property of addition is this an example of?
8+9=9+8

Commutative Property of Addition

100

Ms. Herrion has 13 Justin Bieber CDs and 6 Miley Cirus CDs. How many does she have in all?
Draw a picture to represent this problem & solve.

Your picture should have a question mark in the top bar, 13 in part of the bottom bar and 6 in the other part of the bottom bar.
The answer is 19 CDs.

200

3,179+834=

4,013

200

248-199=

49

200

Estimate the difference of 92-74.

20

200

Which property is this an example of?
2+(1+4)=(2+1)+4

Associative Property of Addition

200

Donique wears really cool jewelry! She has 23 bracelets and 19 necklaces. About how many pieces of jewelry does she have?

about 40 pieces of jewelry

300

What is a word or phrase you would find in a word problem that let's you know you should add?

total, sum, in all, altogether (any word from the poster is correct!)

300

102-38=

64

300

CJ read 15 hours last month. This month, CJ has read 28 hours. Estimate the number of hours he has read in the past two months.

about 50 hours

300

Which property is this an example of?
456+0=0

Identity Property of Addition

300

Temsia ate an apple for lunch. She also ate 2 tacos that were 150 calories each. How many calories did she eat for lunch?
Can you solve this problem? If yes, solve it. If no, what information is missing?

No - we need to know how many calories there are for the apple.

400

What is the term for the answer to an addition problem?

Sum

400

3,000-1,743=

1,257

400

Daniela has eaten 76 school lunches at Lakewood. Alagie has eaten 22 school lunches at Lakewood. About how many schools lunches have they eaten in all?

about 100 school lunches

400

Which property of addition states that the grouping of the addends (the numbers you are adding together) does not change the sum?

Associative Property of Addition

400

Jorge bought some Silly Bandz this summer. His mom gave him 12 more on the first day of school. How many Silly Bandz does he have in all?
What information is needed to solve this problem?

We need to know how many Silly Bandz Jorge bought this summer.

500

What term is used for the numbers you add together in an addition problem?

Addends

500

What is a word or phrase you would see in a word problem that means subtraction?

difference, how many more, less (any words from the poster!)

500

Ms. Herrion bought 457 pencils at the beginning of the year. At the end of the year, she only had 21 left. About how many pencils were used during the school year?

about 440 pencils

500

Which property of addition states that you can add two numbers in any order and it does not change the sum?

Commutative Property of Addition

500

Davione loves to read! She has read 456 books in her whole life! How many more books does she need to read if she wants to be able to say she has read 1,000 books?

544 more books

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