1.        3,190
   _     2,589
    ______________

   
   

2. About how many students would be in 2 third-grade classes?
   10     200     40     80
   

   
   

3. 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.

   ________________________________________
   

   
   

4. Writing to explain.

   Amanda has 20 stickers. She gave 9 to Erin. Explain how you would find the difference.

   _____________________________________________________________

   _____________________________________________________________
   

   
   

5. Which number sentence is in the fact family with 5 + 8 = 13 ?

   13 - 8 = 5    6 + 7 = 13     8 - 5 = 3     3 + 5 = 8
   

   
   

6. 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