← Round and adjust lesson New set →

Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 60 · 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. 2.15 × 19 =
  3. 3.13 × 29 =
  4. 4.15 × 29 =
  5. 5.5 × 99 =
  6. 6.3 × 99 =
  7. 7.4 × 29 =
  8. 8.4 × 19 =
  9. 9.4 × 9 =
  10. 10.25 × 98 =
  11. 11.9 × 49 =
  12. 12.6 × 19 =
  13. 13.9 × 49 =
  14. 14.14 × 29 =
  15. 15.13 × 9 =
  16. 16.19 × 98 =
  17. 17.37 × 99 =
  18. 18.8 × 9 =
  19. 19.8 × 9 =
  20. 20.19 × 99 =
  21. 21.8 × 98 =
  22. 22.25 × 98 =
  23. 23.9 × 9 =
  24. 24.12 × 19 =
  25. 25.6 × 19 =
  26. 26.8 × 19 =
  27. 27.11 × 19 =
  28. 28.5 × 29 =
  29. 29.13 × 49 =
  30. 30.6 × 9 =
  31. 31.14 × 99 =
  32. 32.5 × 9 =
  33. 33.7 × 49 =
  34. 34.14 × 49 =
  35. 35.12 × 29 =
  36. 36.35 × 98 =
  37. 37.6 × 29 =
  38. 38.9 × 9 =
  39. 39.3 × 19 =
  40. 40.6 × 29 =

Answer key

  1. 228
  2. 285
  3. 377
  4. 435
  5. 495
  6. 297
  7. 116
  8. 76
  9. 36
  10. 2450
  11. 441
  12. 114
  13. 441
  14. 406
  15. 117
  16. 1862
  17. 3663
  18. 72
  19. 72
  20. 1881
  21. 784
  22. 2450
  23. 81
  24. 228
  25. 114
  26. 152
  27. 209
  28. 145
  29. 637
  30. 54
  31. 1386
  32. 45
  33. 343
  34. 686
  35. 348
  36. 3430
  37. 174
  38. 81
  39. 57
  40. 174

Free tables & multiplication lessons, practice and worksheets at talentjr.in/multiplication-tables