1. Round to the nearest 10. 646 942 Round to the nearest 100. 413 6 892 + 82= 75 – 32= Think About It! I added 2 three digit numbers together and got a sum of 214. What might the two numbers be?

2. The pumpkin patch sold a lot of pumpkins. The first day, 580 pumpkins were sold. The second day 324 pumpkins were sold. How many pumpkins were sold?

3. Ella Kate and Olivia each carved a pumpkin. When they finished, there was a total of 97 pumpkin seeds. Ella Kate’s pumpkin had 54 seeds. How many seeds did Olivia’s pumpkin have inside?

4. 28 + 11= 14 + 35= 22 + 15= 18 + 31=

5. Add. 529 + 232= 357 + 82= Subtract. 84 – 32= (Use an open number line and expanded form.) Think About It! I added 2 three digit numbers together and got a sum of 406. What might the two numbers be?

6. Farmer Burt planted 203 pumpkin seeds. 165 of those seeds grew into great big pumpkins. How many seeds did not grow into a pumpkin?

7. Farmer Burt invited some 3 rd graders to her pumpkin patch. Mrs. Broadfoot’s class picked 43 pumpkins, Mrs. Wallace’s class picked 38 pumpkins, and Mrs. Henderson’s class picked 65 pumpkins. How many pumpkins did all 3 classes pick?

8. 15 + 27= 23 + 18= 17 + 25= 16 + 27=

9. Add. 892 + 67= 439 + 284= Subtract. 167 – 142= (Use an open number line and expanded Form.) Think about it! Aaron counts his marble collection. When he rounds his marbles to the nearest 10, it is 70. When he rounds his marbles to the nearest 100, it is 100. How many marbles might Aaron have? Explain your thinking

10. Ben and Luke decided to enter a pumpkin carving contest. It took Luke 47 minutes to carve his pumpkin, and it took Ben 115 minutes to carve his. How many total minutes did it take for both boys to carve their pumpkin? How many more minutes did it take Ben to carve his pumpkin than it took Luke?

11. 25 + 35= 32 + 28= 36 + 27= 26 + 24=

12. Round the numbers to the nearest 10 and the nearest 100. 829 28 Subtract. 97 - 49= (Use an open number line and expanded form.) Use addition to check your answer.

13. 36 + 22= 12 + 37= 13 + 14= 24 + 32=

14. Ava was delivering 313 mini pumpkins to the Fall Festival in a wheelbarrow. On her way, the wheelbarrow fell over and many pumpkins fell out. Only195 pumpkins remained in the wheelbarrow. How many pumpkins fell out of Ava’s wheelbarrow?

15. Ava finally made it to the Fall Festival with the remaining pumpkins. While at the festival, Ava sold 65 of her 195 mini pumpkins. How many mini pumpkins did Ava not sell?