← Round and adjust lesson New set →

Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 796 · 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. 1.10 × 9 =
  2. 2.10 × 49 =
  3. 3.7 × 9 =
  4. 4.13 × 49 =
  5. 5.3 × 19 =
  6. 6.13 × 19 =
  7. 7.6 × 19 =
  8. 8.24 × 98 =
  9. 9.8 × 29 =
  10. 10.7 × 98 =
  11. 11.15 × 9 =
  12. 12.13 × 49 =
  13. 13.7 × 49 =
  14. 14.10 × 49 =
  15. 15.25 × 98 =
  16. 16.6 × 29 =
  17. 17.4 × 9 =
  18. 18.7 × 9 =
  19. 19.8 × 19 =
  20. 20.3 × 19 =
  21. 21.14 × 29 =
  22. 22.36 × 98 =
  23. 23.28 × 99 =
  24. 24.19 × 99 =
  25. 25.23 × 98 =
  26. 26.10 × 29 =
  27. 27.13 × 9 =
  28. 28.30 × 98 =
  29. 29.5 × 19 =
  30. 30.11 × 49 =
  31. 31.4 × 49 =
  32. 32.15 × 49 =
  33. 33.6 × 19 =
  34. 34.37 × 98 =
  35. 35.15 × 99 =
  36. 36.9 × 9 =
  37. 37.15 × 9 =
  38. 38.8 × 49 =
  39. 39.5 × 49 =
  40. 40.5 × 49 =

Answer key

  1. 90
  2. 490
  3. 63
  4. 637
  5. 57
  6. 247
  7. 114
  8. 2352
  9. 232
  10. 686
  11. 135
  12. 637
  13. 343
  14. 490
  15. 2450
  16. 174
  17. 36
  18. 63
  19. 152
  20. 57
  21. 406
  22. 3528
  23. 2772
  24. 1881
  25. 2254
  26. 290
  27. 117
  28. 2940
  29. 95
  30. 539
  31. 196
  32. 735
  33. 114
  34. 3626
  35. 1485
  36. 81
  37. 135
  38. 392
  39. 245
  40. 245

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