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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 70 · 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. 1.182 × 4 =
  2. 2.294 × 3 =
  3. 3.558 × 6 =
  4. 4.916 × 7 =
  5. 5.749 × 3 =
  6. 6.621 × 3 =
  7. 7.786 × 4 =
  8. 8.352 × 8 =
  9. 9.892 × 8 =
  10. 10.368 × 8 =
  11. 11.223 × 4 =
  12. 12.927 × 5 =
  13. 13.701 × 7 =
  14. 14.304 × 8 =
  15. 15.828 × 9 =
  16. 16.412 × 3 =
  17. 17.792 × 8 =
  18. 18.846 × 6 =
  19. 19.466 × 9 =
  20. 20.221 × 3 =
  21. 21.197 × 5 =
  22. 22.858 × 6 =
  23. 23.672 × 8 =
  24. 24.568 × 3 =
  25. 25.403 × 3 =
  26. 26.278 × 4 =
  27. 27.689 × 8 =
  28. 28.764 × 9 =
  29. 29.272 × 5 =
  30. 30.341 × 8 =
  31. 31.188 × 9 =
  32. 32.671 × 8 =
  33. 33.753 × 3 =
  34. 34.448 × 5 =
  35. 35.511 × 8 =
  36. 36.135 × 4 =
  37. 37.549 × 6 =
  38. 38.116 × 7 =
  39. 39.173 × 4 =
  40. 40.641 × 5 =

Answer key

  1. 728
  2. 882
  3. 3348
  4. 6412
  5. 2247
  6. 1863
  7. 3144
  8. 2816
  9. 7136
  10. 2944
  11. 892
  12. 4635
  13. 4907
  14. 2432
  15. 7452
  16. 1236
  17. 6336
  18. 5076
  19. 4194
  20. 663
  21. 985
  22. 5148
  23. 5376
  24. 1704
  25. 1209
  26. 1112
  27. 5512
  28. 6876
  29. 1360
  30. 2728
  31. 1692
  32. 5368
  33. 2259
  34. 2240
  35. 4088
  36. 540
  37. 3294
  38. 812
  39. 692
  40. 3205

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