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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 522 · 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. 1.976 × 3 =
  2. 2.446 × 4 =
  3. 3.369 × 9 =
  4. 4.368 × 5 =
  5. 5.857 × 4 =
  6. 6.715 × 8 =
  7. 7.251 × 3 =
  8. 8.329 × 5 =
  9. 9.204 × 7 =
  10. 10.916 × 5 =
  11. 11.289 × 5 =
  12. 12.331 × 6 =
  13. 13.587 × 7 =
  14. 14.979 × 9 =
  15. 15.342 × 7 =
  16. 16.224 × 3 =
  17. 17.847 × 6 =
  18. 18.527 × 6 =
  19. 19.665 × 4 =
  20. 20.382 × 4 =
  21. 21.157 × 5 =
  22. 22.906 × 9 =
  23. 23.449 × 7 =
  24. 24.422 × 8 =
  25. 25.896 × 4 =
  26. 26.352 × 5 =
  27. 27.869 × 3 =
  28. 28.483 × 6 =
  29. 29.137 × 9 =
  30. 30.854 × 3 =
  31. 31.778 × 5 =
  32. 32.932 × 4 =
  33. 33.792 × 9 =
  34. 34.456 × 3 =
  35. 35.923 × 3 =
  36. 36.971 × 4 =
  37. 37.671 × 4 =
  38. 38.116 × 5 =
  39. 39.754 × 9 =
  40. 40.628 × 9 =

Answer key

  1. 2928
  2. 1784
  3. 3321
  4. 1840
  5. 3428
  6. 5720
  7. 753
  8. 1645
  9. 1428
  10. 4580
  11. 1445
  12. 1986
  13. 4109
  14. 8811
  15. 2394
  16. 672
  17. 5082
  18. 3162
  19. 2660
  20. 1528
  21. 785
  22. 8154
  23. 3143
  24. 3376
  25. 3584
  26. 1760
  27. 2607
  28. 2898
  29. 1233
  30. 2562
  31. 3890
  32. 3728
  33. 7128
  34. 1368
  35. 2769
  36. 3884
  37. 2684
  38. 580
  39. 6786
  40. 5652

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