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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 847 · 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. 1.12 × 19 =
  2. 2.33 × 99 =
  3. 3.13 × 9 =
  4. 4.15 × 29 =
  5. 5.14 × 29 =
  6. 6.9 × 98 =
  7. 7.3 × 29 =
  8. 8.14 × 19 =
  9. 9.12 × 19 =
  10. 10.7 × 99 =
  11. 11.8 × 9 =
  12. 12.34 × 98 =
  13. 13.5 × 19 =
  14. 14.14 × 9 =
  15. 15.15 × 9 =
  16. 16.13 × 29 =
  17. 17.4 × 49 =
  18. 18.7 × 98 =
  19. 19.4 × 19 =
  20. 20.9 × 49 =
  21. 21.13 × 9 =
  22. 22.8 × 99 =
  23. 23.40 × 98 =
  24. 24.28 × 98 =
  25. 25.3 × 19 =
  26. 26.5 × 49 =
  27. 27.6 × 98 =
  28. 28.32 × 99 =
  29. 29.6 × 49 =
  30. 30.9 × 19 =
  31. 31.3 × 49 =
  32. 32.23 × 99 =
  33. 33.28 × 98 =
  34. 34.12 × 49 =
  35. 35.11 × 29 =
  36. 36.28 × 98 =
  37. 37.13 × 29 =
  38. 38.4 × 99 =
  39. 39.8 × 9 =
  40. 40.10 × 9 =

Answer key

  1. 228
  2. 3267
  3. 117
  4. 435
  5. 406
  6. 882
  7. 87
  8. 266
  9. 228
  10. 693
  11. 72
  12. 3332
  13. 95
  14. 126
  15. 135
  16. 377
  17. 196
  18. 686
  19. 76
  20. 441
  21. 117
  22. 792
  23. 3920
  24. 2744
  25. 57
  26. 245
  27. 588
  28. 3168
  29. 294
  30. 171
  31. 147
  32. 2277
  33. 2744
  34. 588
  35. 319
  36. 2744
  37. 377
  38. 396
  39. 72
  40. 90

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