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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 950 · 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. 1.14 × 99 =
  2. 2.8 × 98 =
  3. 3.34 × 99 =
  4. 4.7 × 19 =
  5. 5.21 × 99 =
  6. 6.27 × 98 =
  7. 7.21 × 99 =
  8. 8.21 × 99 =
  9. 9.4 × 9 =
  10. 10.18 × 98 =
  11. 11.6 × 29 =
  12. 12.4 × 29 =
  13. 13.39 × 98 =
  14. 14.21 × 98 =
  15. 15.37 × 98 =
  16. 16.5 × 19 =
  17. 17.5 × 9 =
  18. 18.38 × 99 =
  19. 19.12 × 49 =
  20. 20.8 × 19 =
  21. 21.3 × 9 =
  22. 22.5 × 29 =
  23. 23.10 × 9 =
  24. 24.10 × 9 =
  25. 25.38 × 99 =
  26. 26.12 × 19 =
  27. 27.17 × 98 =
  28. 28.14 × 99 =
  29. 29.8 × 9 =
  30. 30.10 × 29 =
  31. 31.7 × 9 =
  32. 32.15 × 19 =
  33. 33.13 × 9 =
  34. 34.5 × 19 =
  35. 35.18 × 99 =
  36. 36.13 × 19 =
  37. 37.11 × 9 =
  38. 38.14 × 9 =
  39. 39.22 × 99 =
  40. 40.11 × 29 =

Answer key

  1. 1386
  2. 784
  3. 3366
  4. 133
  5. 2079
  6. 2646
  7. 2079
  8. 2079
  9. 36
  10. 1764
  11. 174
  12. 116
  13. 3822
  14. 2058
  15. 3626
  16. 95
  17. 45
  18. 3762
  19. 588
  20. 152
  21. 27
  22. 145
  23. 90
  24. 90
  25. 3762
  26. 228
  27. 1666
  28. 1386
  29. 72
  30. 290
  31. 63
  32. 285
  33. 117
  34. 95
  35. 1782
  36. 247
  37. 99
  38. 126
  39. 2178
  40. 319

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