Unknown Addends

Front

What is an addend?

Back

An addend is a number that is added to another number in an addition problem.

Front

What does it mean to find a missing addend?

Back

Finding a missing addend means determining the number that needs to be added to another number to reach a specific total.

Front

3 + ___ = 15. What is the missing addend?

Back

12

Front

5 + ___ = 16. What is the missing addend?

Back

11

Front

3 + ___ = 16. What is the missing addend?

Back

13

Front

___ + 4 = 18. What is the missing addend?

Back

14

Front

12 + ___ = 19. What is the missing addend?

Back

7

Front

If 7 + ___ = 10, what is the missing addend?

Back

3

Front

What is the sum of 8 and 5?

Back

13

Front

If you have 9 apples and you add some more to make 15, how many did you add?

Back

6