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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 559 · 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. 1.146 × 5 =
  2. 2.802 × 3 =
  3. 3.511 × 9 =
  4. 4.773 × 6 =
  5. 5.331 × 7 =
  6. 6.681 × 4 =
  7. 7.793 × 8 =
  8. 8.325 × 3 =
  9. 9.338 × 3 =
  10. 10.326 × 4 =
  11. 11.988 × 3 =
  12. 12.582 × 3 =
  13. 13.666 × 3 =
  14. 14.651 × 3 =
  15. 15.476 × 6 =
  16. 16.145 × 4 =
  17. 17.526 × 3 =
  18. 18.121 × 5 =
  19. 19.462 × 4 =
  20. 20.204 × 6 =
  21. 21.431 × 8 =
  22. 22.393 × 8 =
  23. 23.473 × 7 =
  24. 24.968 × 8 =
  25. 25.179 × 9 =
  26. 26.429 × 3 =
  27. 27.575 × 4 =
  28. 28.453 × 5 =
  29. 29.535 × 6 =
  30. 30.456 × 6 =
  31. 31.268 × 3 =
  32. 32.258 × 6 =
  33. 33.641 × 6 =
  34. 34.713 × 6 =
  35. 35.702 × 8 =
  36. 36.979 × 7 =
  37. 37.517 × 3 =
  38. 38.691 × 3 =
  39. 39.393 × 4 =
  40. 40.521 × 9 =

Answer key

  1. 730
  2. 2406
  3. 4599
  4. 4638
  5. 2317
  6. 2724
  7. 6344
  8. 975
  9. 1014
  10. 1304
  11. 2964
  12. 1746
  13. 1998
  14. 1953
  15. 2856
  16. 580
  17. 1578
  18. 605
  19. 1848
  20. 1224
  21. 3448
  22. 3144
  23. 3311
  24. 7744
  25. 1611
  26. 1287
  27. 2300
  28. 2265
  29. 3210
  30. 2736
  31. 804
  32. 1548
  33. 3846
  34. 4278
  35. 5616
  36. 6853
  37. 1551
  38. 2073
  39. 1572
  40. 4689

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