3rd grade Math
posted by jo on .
Write afact family with the sum of 17. Explain how you picked the addends.

Fact families are trios of numbers that are used for addition and subtraction.
9+8=17
8+9=17
179=8
178=9
You can do this for just about any set of numbers. Other addends for 17 would be 10 and 7, 15 and 2, etc.
=) 
How do you exlain how you picked the addends you used