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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 994 · 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. 1.5 × 19 =
  2. 2.40 × 98 =
  3. 3.12 × 49 =
  4. 4.7 × 99 =
  5. 5.5 × 49 =
  6. 6.17 × 98 =
  7. 7.35 × 98 =
  8. 8.13 × 98 =
  9. 9.12 × 49 =
  10. 10.13 × 29 =
  11. 11.15 × 98 =
  12. 12.8 × 29 =
  13. 13.13 × 19 =
  14. 14.12 × 49 =
  15. 15.13 × 98 =
  16. 16.10 × 29 =
  17. 17.37 × 99 =
  18. 18.19 × 99 =
  19. 19.3 × 29 =
  20. 20.10 × 19 =
  21. 21.9 × 49 =
  22. 22.7 × 9 =
  23. 23.10 × 49 =
  24. 24.31 × 98 =
  25. 25.5 × 29 =
  26. 26.12 × 29 =
  27. 27.12 × 99 =
  28. 28.6 × 29 =
  29. 29.5 × 99 =
  30. 30.8 × 99 =
  31. 31.6 × 49 =
  32. 32.4 × 29 =
  33. 33.9 × 29 =
  34. 34.3 × 49 =
  35. 35.12 × 19 =
  36. 36.7 × 29 =
  37. 37.3 × 9 =
  38. 38.8 × 9 =
  39. 39.8 × 49 =
  40. 40.13 × 98 =

Answer key

  1. 95
  2. 3920
  3. 588
  4. 693
  5. 245
  6. 1666
  7. 3430
  8. 1274
  9. 588
  10. 377
  11. 1470
  12. 232
  13. 247
  14. 588
  15. 1274
  16. 290
  17. 3663
  18. 1881
  19. 87
  20. 190
  21. 441
  22. 63
  23. 490
  24. 3038
  25. 145
  26. 348
  27. 1188
  28. 174
  29. 495
  30. 792
  31. 294
  32. 116
  33. 261
  34. 147
  35. 228
  36. 203
  37. 27
  38. 72
  39. 392
  40. 1274

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