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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 279 · 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. 1.683 × 6 =
  2. 2.233 × 9 =
  3. 3.535 × 5 =
  4. 4.327 × 4 =
  5. 5.216 × 6 =
  6. 6.811 × 3 =
  7. 7.251 × 5 =
  8. 8.174 × 8 =
  9. 9.626 × 5 =
  10. 10.371 × 3 =
  11. 11.362 × 6 =
  12. 12.272 × 9 =
  13. 13.865 × 6 =
  14. 14.394 × 5 =
  15. 15.691 × 8 =
  16. 16.131 × 7 =
  17. 17.822 × 5 =
  18. 18.613 × 7 =
  19. 19.596 × 7 =
  20. 20.887 × 8 =
  21. 21.337 × 5 =
  22. 22.184 × 3 =
  23. 23.651 × 7 =
  24. 24.551 × 3 =
  25. 25.845 × 5 =
  26. 26.566 × 8 =
  27. 27.356 × 5 =
  28. 28.432 × 8 =
  29. 29.156 × 6 =
  30. 30.659 × 8 =
  31. 31.865 × 5 =
  32. 32.195 × 9 =
  33. 33.282 × 9 =
  34. 34.912 × 6 =
  35. 35.588 × 3 =
  36. 36.603 × 3 =
  37. 37.548 × 4 =
  38. 38.553 × 3 =
  39. 39.405 × 6 =
  40. 40.622 × 3 =

Answer key

  1. 4098
  2. 2097
  3. 2675
  4. 1308
  5. 1296
  6. 2433
  7. 1255
  8. 1392
  9. 3130
  10. 1113
  11. 2172
  12. 2448
  13. 5190
  14. 1970
  15. 5528
  16. 917
  17. 4110
  18. 4291
  19. 4172
  20. 7096
  21. 1685
  22. 552
  23. 4557
  24. 1653
  25. 4225
  26. 4528
  27. 1780
  28. 3456
  29. 936
  30. 5272
  31. 4325
  32. 1755
  33. 2538
  34. 5472
  35. 1764
  36. 1809
  37. 2192
  38. 1659
  39. 2430
  40. 1866

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