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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 397 · 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. 1.727 × 7 =
  2. 2.481 × 5 =
  3. 3.297 × 5 =
  4. 4.222 × 4 =
  5. 5.846 × 7 =
  6. 6.523 × 4 =
  7. 7.651 × 5 =
  8. 8.345 × 4 =
  9. 9.494 × 9 =
  10. 10.433 × 4 =
  11. 11.315 × 4 =
  12. 12.181 × 5 =
  13. 13.511 × 5 =
  14. 14.693 × 3 =
  15. 15.251 × 3 =
  16. 16.187 × 4 =
  17. 17.631 × 4 =
  18. 18.915 × 4 =
  19. 19.122 × 5 =
  20. 20.241 × 6 =
  21. 21.761 × 8 =
  22. 22.489 × 9 =
  23. 23.154 × 9 =
  24. 24.941 × 4 =
  25. 25.454 × 7 =
  26. 26.196 × 4 =
  27. 27.329 × 4 =
  28. 28.287 × 6 =
  29. 29.618 × 4 =
  30. 30.679 × 9 =
  31. 31.147 × 5 =
  32. 32.399 × 4 =
  33. 33.757 × 8 =
  34. 34.156 × 5 =
  35. 35.211 × 8 =
  36. 36.689 × 6 =
  37. 37.939 × 4 =
  38. 38.674 × 7 =
  39. 39.687 × 8 =
  40. 40.784 × 8 =

Answer key

  1. 5089
  2. 2405
  3. 1485
  4. 888
  5. 5922
  6. 2092
  7. 3255
  8. 1380
  9. 4446
  10. 1732
  11. 1260
  12. 905
  13. 2555
  14. 2079
  15. 753
  16. 748
  17. 2524
  18. 3660
  19. 610
  20. 1446
  21. 6088
  22. 4401
  23. 1386
  24. 3764
  25. 3178
  26. 784
  27. 1316
  28. 1722
  29. 2472
  30. 6111
  31. 735
  32. 1596
  33. 6056
  34. 780
  35. 1688
  36. 4134
  37. 3756
  38. 4718
  39. 5496
  40. 6272

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