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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 29 · 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. 1.153 × 9 =
  2. 2.695 × 3 =
  3. 3.142 × 3 =
  4. 4.244 × 3 =
  5. 5.252 × 4 =
  6. 6.582 × 8 =
  7. 7.389 × 5 =
  8. 8.343 × 5 =
  9. 9.407 × 4 =
  10. 10.219 × 4 =
  11. 11.608 × 3 =
  12. 12.964 × 3 =
  13. 13.967 × 6 =
  14. 14.809 × 8 =
  15. 15.115 × 4 =
  16. 16.911 × 4 =
  17. 17.562 × 3 =
  18. 18.543 × 4 =
  19. 19.572 × 3 =
  20. 20.439 × 9 =
  21. 21.456 × 9 =
  22. 22.499 × 6 =
  23. 23.263 × 4 =
  24. 24.924 × 6 =
  25. 25.522 × 8 =
  26. 26.311 × 4 =
  27. 27.681 × 8 =
  28. 28.123 × 8 =
  29. 29.606 × 9 =
  30. 30.288 × 3 =
  31. 31.698 × 4 =
  32. 32.707 × 5 =
  33. 33.291 × 3 =
  34. 34.545 × 8 =
  35. 35.123 × 3 =
  36. 36.392 × 3 =
  37. 37.819 × 8 =
  38. 38.221 × 9 =
  39. 39.242 × 5 =
  40. 40.396 × 9 =

Answer key

  1. 1377
  2. 2085
  3. 426
  4. 732
  5. 1008
  6. 4656
  7. 1945
  8. 1715
  9. 1628
  10. 876
  11. 1824
  12. 2892
  13. 5802
  14. 6472
  15. 460
  16. 3644
  17. 1686
  18. 2172
  19. 1716
  20. 3951
  21. 4104
  22. 2994
  23. 1052
  24. 5544
  25. 4176
  26. 1244
  27. 5448
  28. 984
  29. 5454
  30. 864
  31. 2792
  32. 3535
  33. 873
  34. 4360
  35. 369
  36. 1176
  37. 6552
  38. 1989
  39. 1210
  40. 3564

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