1. Find 83 + 13. A. 70 B. 96 C. 86 D. 90 Hint 2. Round 32 to the nearest ten. A. 40 B. 35 C. 25 D. 30 Hint 3. Find 400 + 500. A. 800 B. 450 C. 100 D. 900 Hint 4. Find 300 + 0. A. 100 B. 300 C. 0 D. 400 Hint 5. Find 253 + 209. A. 562 B. 462 C. 552 D. 452 Hint 6. Find 806 + 56. A. 862 B. 750 C. 872 D. 852 Hint 7. Find 261 + 58. A. 309 B. 317 C. 319 D. 219 Hint 8. Find 193 + 46. A. 249 B. 139 C. 193 D. 239 Hint 9. Estimate the sum to the nearest ten. 626 + 187 A. 820 B. 810 C. 830 D. 800 Hint 10. Which is a better estimate for 626 + 187? A. 626 + 187 is 803 which is closer to 820 than 800 so the nearest ten is better. B. 626 + 187 is 813 which is closer to 800 than 820 so the nearest hundred is better. C. 626 + 187 is 803 which is closer to 800 than 820 so the nearest hundred is better. D. 626 + 187 is 813 which is closer to 820 than 800 so the nearest ten is better. Hint 11. Find the difference.600 − 200 A. 800 B. 600 C. 4 D. 400 Hint 12. Find the difference.700 − 700 A. 140 B. 0 C. 140 D. 100 Hint 13. Find the difference.193 − 19 A. 174 B. 30 C. 3 D. 184 Hint 14. Richard sent out 153 invitations. Seventeen got lost in the mail. How many invitations were received? A. 140 B. 146 C. 170 D. 136 Hint 15. Find the difference.826 − 582 A. 244 B. 344 C. 364 D. 264 Hint 16. Find the difference.257 − 62 A. 295 B. 215 C. 115 D. 195 Hint 17. Estimate the difference to the nearest ten. 626 − 187 A. 400 B. 450 C. 440 D. 430 Hint 18. Estimate the difference to the nearest ten. 298 − 108 A. 170 B. 180 C. 190 D. 200 Hint