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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 225 · 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. 1.134 × 7 =
  2. 2.715 × 6 =
  3. 3.726 × 3 =
  4. 4.701 × 5 =
  5. 5.671 × 6 =
  6. 6.232 × 5 =
  7. 7.164 × 5 =
  8. 8.296 × 8 =
  9. 9.908 × 3 =
  10. 10.654 × 7 =
  11. 11.865 × 7 =
  12. 12.771 × 9 =
  13. 13.861 × 9 =
  14. 14.974 × 4 =
  15. 15.941 × 4 =
  16. 16.327 × 4 =
  17. 17.159 × 7 =
  18. 18.713 × 5 =
  19. 19.443 × 5 =
  20. 20.681 × 4 =
  21. 21.564 × 3 =
  22. 22.453 × 5 =
  23. 23.763 × 5 =
  24. 24.183 × 3 =
  25. 25.685 × 7 =
  26. 26.193 × 5 =
  27. 27.439 × 3 =
  28. 28.138 × 7 =
  29. 29.441 × 6 =
  30. 30.341 × 3 =
  31. 31.901 × 6 =
  32. 32.831 × 3 =
  33. 33.532 × 3 =
  34. 34.223 × 4 =
  35. 35.981 × 7 =
  36. 36.235 × 5 =
  37. 37.275 × 6 =
  38. 38.432 × 9 =
  39. 39.281 × 4 =
  40. 40.964 × 3 =

Answer key

  1. 938
  2. 4290
  3. 2178
  4. 3505
  5. 4026
  6. 1160
  7. 820
  8. 2368
  9. 2724
  10. 4578
  11. 6055
  12. 6939
  13. 7749
  14. 3896
  15. 3764
  16. 1308
  17. 1113
  18. 3565
  19. 2215
  20. 2724
  21. 1692
  22. 2265
  23. 3815
  24. 549
  25. 4795
  26. 965
  27. 1317
  28. 966
  29. 2646
  30. 1023
  31. 5406
  32. 2493
  33. 1596
  34. 892
  35. 6867
  36. 1175
  37. 1650
  38. 3888
  39. 1124
  40. 2892

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