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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

 



 
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