Unit 3 Math

True or False

100

Is the equation true or false?

3 + 5 = 7 + 1

True

200

Is the equation true or false?

12 - 6 = 8 - 3

False

300

Make the equation true.

7 + ___ = 15

8

400

Make the equation true.

16 - ___ = 9

7

Data and Comparing

100

Make a tally chart.

Pentagons - 4

Squares - 5

Triangles - 3

200

How many more children choose play-doh than scissors?

2 more children

300

There are 9 robots. There are 14 toy cars. How many fewer robots are there than toy cars?

5 fewer robots

400

There are 6 more snails than frogs. There are 13 snails. Which equation shows how many frogs there are?

6 = 13 + ___

6 + ___ = 13

6 + 13 = ___

6 + ___ = 13

Word Problems

100

There are 11 baseballs. A player takes some baseballs. Now there are 7 baseballs left. How many baseballs did the player take? Write an equation to solve.

7 + ___ = 11

11 + 7 = ___

11 - ___ = 7

___ - 7 = 11 

7 + ___ = 11

or 

11 - ___ = 7

200

There are 12 crayons. 8 are in a box. The rest are in a bag. How many crayons are in the bag?

4 crayons in the bag

300

Some dogs are at the park. 5 dogs go home. Now 7 dogs are at the park. How many dogs were at the park to start?

12 dogs were at the park