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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 127 · 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. 1.728 × 7 =
  2. 2.163 × 8 =
  3. 3.456 × 3 =
  4. 4.118 × 3 =
  5. 5.861 × 4 =
  6. 6.452 × 7 =
  7. 7.984 × 5 =
  8. 8.869 × 5 =
  9. 9.552 × 4 =
  10. 10.338 × 5 =
  11. 11.877 × 8 =
  12. 12.611 × 3 =
  13. 13.716 × 9 =
  14. 14.136 × 9 =
  15. 15.251 × 6 =
  16. 16.466 × 7 =
  17. 17.217 × 6 =
  18. 18.506 × 4 =
  19. 19.865 × 9 =
  20. 20.462 × 6 =
  21. 21.842 × 3 =
  22. 22.701 × 4 =
  23. 23.705 × 9 =
  24. 24.934 × 9 =
  25. 25.456 × 5 =
  26. 26.942 × 8 =
  27. 27.892 × 7 =
  28. 28.856 × 7 =
  29. 29.398 × 6 =
  30. 30.203 × 3 =
  31. 31.953 × 6 =
  32. 32.233 × 3 =
  33. 33.502 × 4 =
  34. 34.334 × 4 =
  35. 35.262 × 4 =
  36. 36.478 × 3 =
  37. 37.493 × 9 =
  38. 38.337 × 9 =
  39. 39.316 × 8 =
  40. 40.621 × 7 =

Answer key

  1. 5096
  2. 1304
  3. 1368
  4. 354
  5. 3444
  6. 3164
  7. 4920
  8. 4345
  9. 2208
  10. 1690
  11. 7016
  12. 1833
  13. 6444
  14. 1224
  15. 1506
  16. 3262
  17. 1302
  18. 2024
  19. 7785
  20. 2772
  21. 2526
  22. 2804
  23. 6345
  24. 8406
  25. 2280
  26. 7536
  27. 6244
  28. 5992
  29. 2388
  30. 609
  31. 5718
  32. 699
  33. 2008
  34. 1336
  35. 1048
  36. 1434
  37. 4437
  38. 3033
  39. 2528
  40. 4347

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