### Name: ____________       Date ____________

 3,190 _     2,589  ______________ About how many students would be in 2 third-grade classes? 10     200     40     80 Alan planted 3 rows of tulips. He planted 5 tulip plants in each row. How many tulip plants did Alan plant in total? Write a number sentence to fit this question. ________________________________________ Writing to explain. Amanda has 20 stickers. She gave 9 to Erin. Explain how you would find the difference. _____________________________________________________________ _____________________________________________________________ Which number sentence is in the fact family with 5 + 8 = 13 ? 13 - 8 = 5    6 + 7 = 13     8 - 5 = 3     3 + 5 = 8 Alan had 17 cards. He gave some cards to his friend. He had 8 cards left. Write a number sentence to show how many cards Alan gave to his friend. _____________________________________________________________

## Answer key

1. 601
2. 40
3. 3 x 5 =15
4. I need to find how many stickers are left. I have to subtract. I take away 9 (part) from 20 (whole) to find hte part left. 20 - 9 = I count on from 9 to 20. I say 11 numbers so that tells me Amanda has 11 stickers left.
5. 13 - 8 = 5
6. 17 - ___ = 8