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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 725 · 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. 1.421 × 5 =
  2. 2.291 × 3 =
  3. 3.717 × 7 =
  4. 4.582 × 4 =
  5. 5.366 × 5 =
  6. 6.652 × 7 =
  7. 7.129 × 7 =
  8. 8.168 × 6 =
  9. 9.438 × 3 =
  10. 10.458 × 9 =
  11. 11.251 × 7 =
  12. 12.625 × 3 =
  13. 13.748 × 8 =
  14. 14.186 × 8 =
  15. 15.521 × 7 =
  16. 16.591 × 3 =
  17. 17.611 × 7 =
  18. 18.325 × 9 =
  19. 19.794 × 3 =
  20. 20.269 × 5 =
  21. 21.982 × 4 =
  22. 22.899 × 8 =
  23. 23.544 × 3 =
  24. 24.248 × 3 =
  25. 25.462 × 6 =
  26. 26.953 × 8 =
  27. 27.467 × 8 =
  28. 28.523 × 7 =
  29. 29.266 × 9 =
  30. 30.798 × 5 =
  31. 31.951 × 9 =
  32. 32.715 × 6 =
  33. 33.986 × 3 =
  34. 34.785 × 5 =
  35. 35.367 × 9 =
  36. 36.323 × 3 =
  37. 37.595 × 4 =
  38. 38.624 × 6 =
  39. 39.605 × 6 =
  40. 40.817 × 4 =

Answer key

  1. 2105
  2. 873
  3. 5019
  4. 2328
  5. 1830
  6. 4564
  7. 903
  8. 1008
  9. 1314
  10. 4122
  11. 1757
  12. 1875
  13. 5984
  14. 1488
  15. 3647
  16. 1773
  17. 4277
  18. 2925
  19. 2382
  20. 1345
  21. 3928
  22. 7192
  23. 1632
  24. 744
  25. 2772
  26. 7624
  27. 3736
  28. 3661
  29. 2394
  30. 3990
  31. 8559
  32. 4290
  33. 2958
  34. 3925
  35. 3303
  36. 969
  37. 2380
  38. 3744
  39. 3630
  40. 3268

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