Equations

Equalities

100

Find the missing number. 

5 - 4 = 20 - ___

19

5 - 4 = 20 - 19

200

Find  the missing number.

26 - 4 = 12 + ___

10

26 - 4 = 12 + 10

300

56 - ____ = 20 + 36

0 

56 - 0 = 20 + 36

400

100 - 47 = 60 - ____

7 

100 - 47 = 60 - 7

500

150 - 28 = 100 + ____ = 132 - ____

22, 10

150 - 28 = 100 + 22 = 132 - 10

Basic Equations

100

Fill in the blank

13 + 7 = 32 - ___

12

200

___+ 75 = 130 - 30

25

300

Fill in the blank

__+ 19 = 29 - 4

6

400

120 - 70 = 89 - x

120 - 70 = 89 - x

50 = 89 - x

x = 89 - 50

x = 39

500

The sum of 15 and x is equal to the difference between 19 and 45. What is the value of x?

15 + x = 45 - 19

15 + x = 26

x = 26 - 15

x = 11

True or False

100

6x6 = 9x4

True

200

8x0 = 4x6

False

300

36 x 1 = 6 x 6

True

400

2x6 ≠ 3x4

False

500

15+3=9+10

False

Fill in the blank

100

2x4=__/2

16

200

What number can be placed in the blank to make the following equation true?

10 x 3 = 5 x _____

6

300

What number would go in the blank to make the following equality true?

51 + 27 = _____ + 51 + 17

10

400

7+3=__x5

2

500

12 x ___ = 9 x 4

4