Name:    5th Grade Math- Solve missing factor equations practice test, PART 1

Modified True/False
Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true.

1.

The missing addend in this equation is 8:  3 + ___ = 5.

2.

The missing addend in this equation is 12:  9 + ___ = 21

3.

The missing addend in this equation is 51:  29 + __ =  81.

4.

The missing addend in this equation is 82:  75 + __ =  167.

5.

The missing addend in this equation is 43: __ + 17  =  60.

6.

The missing addend in this equation is 50: 9 +  __ + 32 + 15  =  70.

7.

The inverse of the equation  4 X __  = 28 is: 28 ÷  4 = ____.

8.

The missing factor in this equation is 1: __ x 2 =12

9.

The missing factor in this equation is 3: 9 x __ = 18

10.

The missing factor in this equation is 8: 7 x __ = 56

11.

The missing factor in this equation is 8: 8 x __ = 48

12.

The missing factor in this equation is 9: __ x 7 = 63

13.

The missing factor in this equation is 11: __ x 12 =132

Multiple Choice
Identify the choice that best completes the statement or answers the question.

14.

In order to create an inverse operation for 15 + ___  = 31, you use the two known numbers and change the addition sign to...?
 a. subtraction c. division b. multiplication d. leave it a plus sign

15.

If you have the INVERSE equation  15 - 7 = ____,  what was the original equation?
 a. 7 + 8 = 15 c. 7 + ___ = 15 b. 7 - 15 = ___ d. 8 + ___ = 15

16.

___ + 10 = 17.  The missing addend in this equation is:
 a. 9 c. 7 b. 27 d. 10

17.

The addend missing in this equation is:  9 + __ = 15
 a. 9 c. 7 b. 6 d. 10

18.

The addend missing in this equation is:  15 + __ = 32
 a. 2 c. 9 b. 12 d. 17

19.

The addend missing in this equation is:  __ + 19 = 43
 a. 24 c. 28 b. 30 d. 14

20.

The addend missing in this equation is:  __ + 72 = 133
 a. 51 c. 61 b. 60 d. 71

21.

52 + 25 + __  = 80
 a. 10 c. -5 b. 3 d. 6

22.

___  + 71 + 25 = 96
 a. 1 c. 3 b. 0 d. 8

23.

23 + ___  + 46 = 98
 a. 18 c. 29 b. 31 d. 28

24.

The inverse of the equation  ___  X 10 = 30  is:
 a. 30 X 10 c. 10 ÷ 30 b. 30 ÷ 10 d. __ ÷ 30

25.

What is the missing factor in this equation: 3 x __  = 9
 a. 9 c. 2 b. 3 d. 4

26.

What is the missing factor in this equation: 5 x __  = 20
 a. 20 c. 5 b. 15 d. 4

27.

What is the missing factor in this equation: __ x 4  = 28
 a. 14 c. 7 b. 3 d. 6

28.

What is the missing factor in this equation: __ x 11  = 33
 a. 22 c. 11 b. 6 d. 3

29.

What is the missing factor in this equation: 6 x __  = 36
 a. 6 c. 5 b. 1 d. 7

30.

What is the missing factor in this equation: 4 x __  = 12
 a. 2 c. 1 b. 3 d. 4

31.

What is the missing factor in this equation: 7 x __  = 21
 a. 3 c. 2 b. 14 d. 5

32.

What is the missing factor in this equation: __ x 8  = 72
 a. 7 c. 10 b. 9 d. 6

Numeric Response

33.

3 + __ = 5.  The missing addend is ___

34.

15 + __ = 29.  The missing addend is ___

35.

__ + 32 = 40.  The missing addend is ___

36.

__ + 104 = 171.  The missing addend is ___

37.

215 + ___ = 409.  The missing addend is ___

38.

3 + __ + 3  = 7.  The missing addend is ___

39.

3 + __ + 13  = 53.  The missing addend is ___

40.

What is the missing factor in this equation?  10 x __ = 10

41.

What is the missing factor in this equation?  9 x __ = 54

42.

What is the missing factor in this equation?  __ x  5 = 40

43.

What is the missing factor in this equation?  __ x  10 = 100

44.

What is the missing factor in this equation?  __ x  8 = 64

45.

What is the missing factor in this equation?  __ x  1 = 11

46.

What is the missing factor in this equation?  9 x __ = 108