Unit 2 Review

Make 10

100

__ + 5 = 10

5

200

2 + __ = 10

8

300

9 + __ = 10

1

400

7 + __ = 10

3

500

10 + ___ = 10

0

Part-Part-Whole

100

Mrs. Ettelt has 4 orange pumpkins and 1 white pumpkin. How many pumpkins does Mrs. Ettelt have in all?

5

200

Ms. Ngeke has 5 vanilla cupcakes and some chocolate cupcakes. She has 9 cupcakes in all. How many cupcakes could be chocolate?

4

300

Mrs. C has 6 markers. There are 4 red markers and the rest are blue. How many markers are blue?

2

400

Ms. Meade had 8 pets. Some of the pets are cats and some are dogs. How many could be cats? How many could be dogs?

Answers could be:

0 and 8

1 and 7

2 and 6

3 and 5

4 and 4

500

Innovation has 12 stuffed animals. Some are huskies and some are teddy bears. How many could be huskies? How many could be teddy bears?

Answers could be:

0 and 12, 1 and 11, 2 and 10, 3 and 9, 4 and 8, 5 and 7, 6 and 6

Addition

100

Which symbol shows addition? 

+    -     = 

+

200

Eli has 5 toy cars. Genesis gave Eli 3 more toy cars. How many toy cars does Eli have?

Write a number sentence to match the story problem.

8

5 + 3 = 8

300

Alex has 3 cookies. His friend Mateo gave him some more cookies. Now Alex has 9 cookies. How many cookies did Mateo give Alex? 

6

400

Mrs. Sellers has 3 soccer balls. Mr. Pueblo gives Mrs. Sellers some more soccer balls. Now Mrs. Sellers has 7 soccer balls. How many soccer balls did Mr. Pueblo give Mrs. Sellers?

4

500

Isabella has some crayons. Xavier gave her 4 more pencils. Now Isabella has 8 pencils in all. How many pencils did Isabella start with?

Write a number sentence to match the problem.

4

4 + 4 = 8

Subtraction

100

Which symbol do we use to show subtraction?

+      -     = 

-

200

Miles has 10 hula hoops. He forgot 8 hula hoops on the playground. How many hula hoops does he have left?

2

300

Phillipa had 9 cookies. She gave some cookies to her friends. Now she only has 1 cookie left. How many cookies did she give to her friends?

8

400

Abby has 6 books. She gave some friends some of her books. Now she has 3 books left. How many books did she give to her friends?

3

500

Jackson had some marbles. He gave 7 marbles to his friends. Now he has 4 marbles left. How many marbles did Jackson begin with?

Write a number sentence to match the story problem.

11

__ - 7 = 4

Equal or Not Equal

100

True or false 

4 + 6 = 9

False

200

Equal or Not Equal

1 + 5 = 6

Equal

300

True or False 

9 - 2 = 5

False

400

How can we make this equation equal?

___ = 2 + 5

7 = 2 + 5

500

How can we make this equation equal?

___ = 6 - 1

 5 = 6 - 1