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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 523 · 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. 1.921 × 5 =
  2. 2.909 × 3 =
  3. 3.412 × 6 =
  4. 4.389 × 8 =
  5. 5.772 × 6 =
  6. 6.844 × 9 =
  7. 7.294 × 5 =
  8. 8.354 × 6 =
  9. 9.194 × 8 =
  10. 10.124 × 6 =
  11. 11.513 × 8 =
  12. 12.204 × 5 =
  13. 13.961 × 4 =
  14. 14.315 × 4 =
  15. 15.138 × 5 =
  16. 16.582 × 3 =
  17. 17.122 × 9 =
  18. 18.748 × 3 =
  19. 19.208 × 4 =
  20. 20.361 × 3 =
  21. 21.744 × 6 =
  22. 22.455 × 8 =
  23. 23.561 × 3 =
  24. 24.401 × 6 =
  25. 25.743 × 4 =
  26. 26.557 × 4 =
  27. 27.182 × 5 =
  28. 28.395 × 4 =
  29. 29.839 × 9 =
  30. 30.719 × 5 =
  31. 31.327 × 9 =
  32. 32.761 × 7 =
  33. 33.715 × 5 =
  34. 34.733 × 7 =
  35. 35.659 × 3 =
  36. 36.743 × 8 =
  37. 37.709 × 3 =
  38. 38.541 × 3 =
  39. 39.791 × 7 =
  40. 40.394 × 7 =

Answer key

  1. 4605
  2. 2727
  3. 2472
  4. 3112
  5. 4632
  6. 7596
  7. 1470
  8. 2124
  9. 1552
  10. 744
  11. 4104
  12. 1020
  13. 3844
  14. 1260
  15. 690
  16. 1746
  17. 1098
  18. 2244
  19. 832
  20. 1083
  21. 4464
  22. 3640
  23. 1683
  24. 2406
  25. 2972
  26. 2228
  27. 910
  28. 1580
  29. 7551
  30. 3595
  31. 2943
  32. 5327
  33. 3575
  34. 5131
  35. 1977
  36. 5944
  37. 2127
  38. 1623
  39. 5537
  40. 2758

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