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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 954 · 40 questions
TalentJR

How it works (Round and adjust): Round up: 49 is 50 − 1, 98 is 100 − 2. Multiply by the round number. Take away the number times the bit you added.

NameDateTime takenScore ___ / 40
  1. 1.6 × 19 =
  2. 2.11 × 29 =
  3. 3.6 × 29 =
  4. 4.4 × 19 =
  5. 5.6 × 98 =
  6. 6.5 × 99 =
  7. 7.3 × 9 =
  8. 8.14 × 99 =
  9. 9.11 × 19 =
  10. 10.7 × 19 =
  11. 11.13 × 99 =
  12. 12.6 × 49 =
  13. 13.8 × 19 =
  14. 14.15 × 9 =
  15. 15.10 × 49 =
  16. 16.33 × 99 =
  17. 17.14 × 29 =
  18. 18.3 × 9 =
  19. 19.4 × 19 =
  20. 20.7 × 19 =
  21. 21.3 × 98 =
  22. 22.5 × 19 =
  23. 23.14 × 9 =
  24. 24.10 × 49 =
  25. 25.13 × 19 =
  26. 26.25 × 98 =
  27. 27.14 × 19 =
  28. 28.9 × 19 =
  29. 29.13 × 49 =
  30. 30.5 × 9 =
  31. 31.7 × 19 =
  32. 32.14 × 99 =
  33. 33.4 × 19 =
  34. 34.20 × 98 =
  35. 35.14 × 9 =
  36. 36.12 × 29 =
  37. 37.5 × 9 =
  38. 38.3 × 99 =
  39. 39.12 × 98 =
  40. 40.9 × 9 =

Answer key

  1. 114
  2. 319
  3. 174
  4. 76
  5. 588
  6. 495
  7. 27
  8. 1386
  9. 209
  10. 133
  11. 1287
  12. 294
  13. 152
  14. 135
  15. 490
  16. 3267
  17. 406
  18. 27
  19. 76
  20. 133
  21. 294
  22. 95
  23. 126
  24. 490
  25. 247
  26. 2450
  27. 266
  28. 171
  29. 637
  30. 45
  31. 133
  32. 1386
  33. 76
  34. 1960
  35. 126
  36. 348
  37. 45
  38. 297
  39. 1176
  40. 81

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