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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 160 · 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. 1.749 × 4 =
  2. 2.211 × 4 =
  3. 3.928 × 9 =
  4. 4.881 × 6 =
  5. 5.748 × 5 =
  6. 6.603 × 3 =
  7. 7.761 × 9 =
  8. 8.421 × 8 =
  9. 9.362 × 5 =
  10. 10.182 × 6 =
  11. 11.317 × 7 =
  12. 12.372 × 9 =
  13. 13.375 × 7 =
  14. 14.592 × 9 =
  15. 15.768 × 6 =
  16. 16.313 × 5 =
  17. 17.792 × 3 =
  18. 18.789 × 3 =
  19. 19.425 × 3 =
  20. 20.322 × 4 =
  21. 21.459 × 7 =
  22. 22.966 × 7 =
  23. 23.583 × 4 =
  24. 24.441 × 8 =
  25. 25.332 × 5 =
  26. 26.269 × 7 =
  27. 27.569 × 7 =
  28. 28.229 × 3 =
  29. 29.345 × 8 =
  30. 30.963 × 5 =
  31. 31.698 × 6 =
  32. 32.167 × 4 =
  33. 33.741 × 4 =
  34. 34.661 × 7 =
  35. 35.417 × 6 =
  36. 36.778 × 8 =
  37. 37.769 × 3 =
  38. 38.945 × 4 =
  39. 39.194 × 6 =
  40. 40.341 × 7 =

Answer key

  1. 2996
  2. 844
  3. 8352
  4. 5286
  5. 3740
  6. 1809
  7. 6849
  8. 3368
  9. 1810
  10. 1092
  11. 2219
  12. 3348
  13. 2625
  14. 5328
  15. 4608
  16. 1565
  17. 2376
  18. 2367
  19. 1275
  20. 1288
  21. 3213
  22. 6762
  23. 2332
  24. 3528
  25. 1660
  26. 1883
  27. 3983
  28. 687
  29. 2760
  30. 4815
  31. 4188
  32. 668
  33. 2964
  34. 4627
  35. 2502
  36. 6224
  37. 2307
  38. 3780
  39. 1164
  40. 2387

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