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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 57 · 40 questions
TalentJR

How to do it in your head (Biggest part first): Split the 3-digit number into hundreds, tens and ones. Multiply the hundreds and keep that number in your head. Multiply the tens and add, then multiply the ones and add.

NameDateTime takenScore ___ / 40
  1. 1.211 × 5 =
  2. 2.795 × 8 =
  3. 3.285 × 3 =
  4. 4.564 × 7 =
  5. 5.349 × 4 =
  6. 6.354 × 3 =
  7. 7.581 × 6 =
  8. 8.771 × 3 =
  9. 9.386 × 8 =
  10. 10.219 × 5 =
  11. 11.252 × 7 =
  12. 12.173 × 6 =
  13. 13.371 × 7 =
  14. 14.599 × 6 =
  15. 15.619 × 5 =
  16. 16.807 × 6 =
  17. 17.683 × 5 =
  18. 18.551 × 4 =
  19. 19.408 × 6 =
  20. 20.265 × 5 =
  21. 21.283 × 6 =
  22. 22.986 × 7 =
  23. 23.871 × 6 =
  24. 24.284 × 9 =
  25. 25.257 × 5 =
  26. 26.342 × 6 =
  27. 27.855 × 7 =
  28. 28.365 × 8 =
  29. 29.174 × 7 =
  30. 30.841 × 3 =
  31. 31.943 × 5 =
  32. 32.949 × 3 =
  33. 33.753 × 7 =
  34. 34.241 × 7 =
  35. 35.486 × 4 =
  36. 36.501 × 8 =
  37. 37.819 × 5 =
  38. 38.406 × 8 =
  39. 39.685 × 6 =
  40. 40.144 × 9 =

Answer key

  1. 1055
  2. 6360
  3. 855
  4. 3948
  5. 1396
  6. 1062
  7. 3486
  8. 2313
  9. 3088
  10. 1095
  11. 1764
  12. 1038
  13. 2597
  14. 3594
  15. 3095
  16. 4842
  17. 3415
  18. 2204
  19. 2448
  20. 1325
  21. 1698
  22. 6902
  23. 5226
  24. 2556
  25. 1285
  26. 2052
  27. 5985
  28. 2920
  29. 1218
  30. 2523
  31. 4715
  32. 2847
  33. 5271
  34. 1687
  35. 1944
  36. 4008
  37. 4095
  38. 3248
  39. 4110
  40. 1296

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