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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 604 · 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. 1.429 × 9 =
  2. 2.987 × 6 =
  3. 3.503 × 9 =
  4. 4.356 × 4 =
  5. 5.237 × 9 =
  6. 6.307 × 5 =
  7. 7.841 × 3 =
  8. 8.353 × 7 =
  9. 9.616 × 8 =
  10. 10.795 × 7 =
  11. 11.318 × 6 =
  12. 12.258 × 3 =
  13. 13.388 × 5 =
  14. 14.374 × 3 =
  15. 15.336 × 3 =
  16. 16.532 × 6 =
  17. 17.846 × 5 =
  18. 18.203 × 4 =
  19. 19.607 × 4 =
  20. 20.571 × 9 =
  21. 21.688 × 9 =
  22. 22.221 × 3 =
  23. 23.699 × 5 =
  24. 24.348 × 8 =
  25. 25.579 × 6 =
  26. 26.316 × 6 =
  27. 27.347 × 5 =
  28. 28.482 × 7 =
  29. 29.253 × 9 =
  30. 30.288 × 9 =
  31. 31.956 × 6 =
  32. 32.209 × 3 =
  33. 33.389 × 6 =
  34. 34.292 × 6 =
  35. 35.286 × 4 =
  36. 36.828 × 6 =
  37. 37.392 × 3 =
  38. 38.301 × 9 =
  39. 39.642 × 8 =
  40. 40.272 × 3 =

Answer key

  1. 3861
  2. 5922
  3. 4527
  4. 1424
  5. 2133
  6. 1535
  7. 2523
  8. 2471
  9. 4928
  10. 5565
  11. 1908
  12. 774
  13. 1940
  14. 1122
  15. 1008
  16. 3192
  17. 4230
  18. 812
  19. 2428
  20. 5139
  21. 6192
  22. 663
  23. 3495
  24. 2784
  25. 3474
  26. 1896
  27. 1735
  28. 3374
  29. 2277
  30. 2592
  31. 5736
  32. 627
  33. 2334
  34. 1752
  35. 1144
  36. 4968
  37. 1176
  38. 2709
  39. 5136
  40. 816

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