Quiz about Equations Finding Unknown Number

Question 1

6 + ? = 15

Accepted Answer

9

Answer

8

Answer

21

Answer

10

Question 2

8 + ? = 16

Accepted Answer

8

Answer

7

Answer

10

Answer

9

Question 3

3 + ? = 12

Accepted Answer

9

Answer

15

Answer

10

Answer

6

Question 4

4 + ? = 12

Accepted Answer

8

Answer

16

Answer

4

Answer

10

Question 5

Find the value of a

5 x a =25

Accepted Answer

a = 5

Answer

a = 4

Answer

a = 6

Answer

a = 20

Question 6

Solve for the unknown

5+6 = 4+N

Accepted Answer

7

Answer

9

Answer

10

Answer

6

Question 7

Lucy had some money saved. She spent $8 of that money on lunch. She added $50 to her savings from money earned for washing dishes all week. After these transactions, her savings was $67. Which number sentence could be used to find s, the amount of money Lucy had before these transaction?

Accepted Answer

s - 8 + 50 = 67

Answer

67 + s = 50 + 8

Answer

(50-8) - s = 67

Answer

67 - 8 + 50 = a

Question 8

What unknown number makes the equation true?

_ x 5= (4x5) + (5x5)

Accepted Answer

9

Answer

7

Answer

3

Answer

4

Question 9

What is the value of the unknown?
__ x 5 = 40

Accepted Answer

8

Answer

45

Answer

35

Answer

7

Question 10

A number sentence that uses the equal sign to show that two expressions are equal.

Accepted Answer

equation

Answer

operation

Answer

strip diagram

Answer

regrouping

Question 11

15+__=21

Accepted Answer

6

Answer

7

Answer

8

Equations Finding Unknown Number

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