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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 139 · 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. 1.589 × 8 =
  2. 2.248 × 9 =
  3. 3.214 × 7 =
  4. 4.491 × 8 =
  5. 5.611 × 6 =
  6. 6.321 × 4 =
  7. 7.391 × 5 =
  8. 8.701 × 5 =
  9. 9.555 × 3 =
  10. 10.868 × 7 =
  11. 11.127 × 6 =
  12. 12.553 × 7 =
  13. 13.664 × 9 =
  14. 14.787 × 6 =
  15. 15.614 × 6 =
  16. 16.594 × 9 =
  17. 17.425 × 3 =
  18. 18.348 × 6 =
  19. 19.794 × 8 =
  20. 20.804 × 5 =
  21. 21.586 × 8 =
  22. 22.839 × 5 =
  23. 23.575 × 5 =
  24. 24.314 × 9 =
  25. 25.681 × 6 =
  26. 26.485 × 8 =
  27. 27.326 × 8 =
  28. 28.342 × 6 =
  29. 29.131 × 7 =
  30. 30.911 × 5 =
  31. 31.436 × 7 =
  32. 32.329 × 8 =
  33. 33.417 × 7 =
  34. 34.749 × 8 =
  35. 35.427 × 5 =
  36. 36.794 × 3 =
  37. 37.724 × 3 =
  38. 38.281 × 3 =
  39. 39.712 × 9 =
  40. 40.351 × 8 =

Answer key

  1. 4712
  2. 2232
  3. 1498
  4. 3928
  5. 3666
  6. 1284
  7. 1955
  8. 3505
  9. 1665
  10. 6076
  11. 762
  12. 3871
  13. 5976
  14. 4722
  15. 3684
  16. 5346
  17. 1275
  18. 2088
  19. 6352
  20. 4020
  21. 4688
  22. 4195
  23. 2875
  24. 2826
  25. 4086
  26. 3880
  27. 2608
  28. 2052
  29. 917
  30. 4555
  31. 3052
  32. 2632
  33. 2919
  34. 5992
  35. 2135
  36. 2382
  37. 2172
  38. 843
  39. 6408
  40. 2808

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