The Grinch Review-Math Unit 3

5+3+1= ___

• 10

• 12

• 9

• 8

Cindy Lou Who had 12 ornaments. The Grinch took 6. How many does she have left?

• 6

• 18

• 7

• 4

8+9= ____

Which problem would help you solve this fact

• 10+10=20

• 7+7 = 14

  One more would be 15

• 8+8=16

  One more would be 17

• 10-9=1

Is the equation true or false?

5+5=9

• True

• False

What number make the number sentence true?

4+ ____= 12

• 16

• 4

• 10

• 8

What number makes the number sentence true?

10= 4+___

• 6

• 14

• 8

• 0

Is the problem True or False?

12= 6+2+4

• True

• False

The Grinch took 11 ornaments from the tree. Some were red and some were green. If 3 were green, how many were red?

• 9

• 8

• 14

• 10

Solve:

5+3= ___+ 4

• 4

• 8

• 12

• 9

This numberline showns what problem?

• 0+3+1

• 3+4

• 4-3

• 0+2