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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 278 · 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. 1.691 × 7 =
  2. 2.346 × 7 =
  3. 3.699 × 3 =
  4. 4.331 × 9 =
  5. 5.178 × 7 =
  6. 6.951 × 4 =
  7. 7.862 × 9 =
  8. 8.441 × 7 =
  9. 9.332 × 4 =
  10. 10.821 × 3 =
  11. 11.911 × 4 =
  12. 12.523 × 7 =
  13. 13.204 × 4 =
  14. 14.373 × 8 =
  15. 15.369 × 6 =
  16. 16.329 × 4 =
  17. 17.507 × 6 =
  18. 18.334 × 9 =
  19. 19.703 × 4 =
  20. 20.186 × 9 =
  21. 21.966 × 5 =
  22. 22.221 × 5 =
  23. 23.689 × 4 =
  24. 24.602 × 4 =
  25. 25.138 × 9 =
  26. 26.351 × 3 =
  27. 27.458 × 4 =
  28. 28.354 × 6 =
  29. 29.641 × 9 =
  30. 30.772 × 4 =
  31. 31.947 × 5 =
  32. 32.515 × 5 =
  33. 33.471 × 3 =
  34. 34.714 × 9 =
  35. 35.863 × 9 =
  36. 36.679 × 3 =
  37. 37.171 × 3 =
  38. 38.736 × 9 =
  39. 39.814 × 3 =
  40. 40.167 × 5 =

Answer key

  1. 4837
  2. 2422
  3. 2097
  4. 2979
  5. 1246
  6. 3804
  7. 7758
  8. 3087
  9. 1328
  10. 2463
  11. 3644
  12. 3661
  13. 816
  14. 2984
  15. 2214
  16. 1316
  17. 3042
  18. 3006
  19. 2812
  20. 1674
  21. 4830
  22. 1105
  23. 2756
  24. 2408
  25. 1242
  26. 1053
  27. 1832
  28. 2124
  29. 5769
  30. 3088
  31. 4735
  32. 2575
  33. 1413
  34. 6426
  35. 7767
  36. 2037
  37. 513
  38. 6624
  39. 2442
  40. 835

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