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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 287 · 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. 1.627 × 7 =
  2. 2.161 × 5 =
  3. 3.535 × 7 =
  4. 4.131 × 7 =
  5. 5.159 × 4 =
  6. 6.249 × 3 =
  7. 7.546 × 8 =
  8. 8.304 × 3 =
  9. 9.461 × 5 =
  10. 10.904 × 3 =
  11. 11.738 × 3 =
  12. 12.222 × 8 =
  13. 13.296 × 4 =
  14. 14.801 × 6 =
  15. 15.791 × 9 =
  16. 16.194 × 3 =
  17. 17.661 × 4 =
  18. 18.705 × 3 =
  19. 19.811 × 4 =
  20. 20.131 × 3 =
  21. 21.881 × 3 =
  22. 22.542 × 4 =
  23. 23.327 × 9 =
  24. 24.601 × 6 =
  25. 25.611 × 8 =
  26. 26.499 × 6 =
  27. 27.662 × 7 =
  28. 28.958 × 6 =
  29. 29.361 × 6 =
  30. 30.649 × 6 =
  31. 31.441 × 7 =
  32. 32.412 × 4 =
  33. 33.362 × 4 =
  34. 34.378 × 5 =
  35. 35.176 × 5 =
  36. 36.734 × 8 =
  37. 37.781 × 3 =
  38. 38.597 × 9 =
  39. 39.816 × 3 =
  40. 40.256 × 3 =

Answer key

  1. 4389
  2. 805
  3. 3745
  4. 917
  5. 636
  6. 747
  7. 4368
  8. 912
  9. 2305
  10. 2712
  11. 2214
  12. 1776
  13. 1184
  14. 4806
  15. 7119
  16. 582
  17. 2644
  18. 2115
  19. 3244
  20. 393
  21. 2643
  22. 2168
  23. 2943
  24. 3606
  25. 4888
  26. 2994
  27. 4634
  28. 5748
  29. 2166
  30. 3894
  31. 3087
  32. 1648
  33. 1448
  34. 1890
  35. 880
  36. 5872
  37. 2343
  38. 5373
  39. 2448
  40. 768

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