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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 312 · 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. 1.639 × 8 =
  2. 2.794 × 9 =
  3. 3.969 × 6 =
  4. 4.482 × 7 =
  5. 5.831 × 4 =
  6. 6.748 × 7 =
  7. 7.289 × 6 =
  8. 8.819 × 7 =
  9. 9.241 × 4 =
  10. 10.711 × 6 =
  11. 11.306 × 6 =
  12. 12.117 × 6 =
  13. 13.909 × 5 =
  14. 14.467 × 8 =
  15. 15.258 × 7 =
  16. 16.889 × 7 =
  17. 17.527 × 7 =
  18. 18.177 × 8 =
  19. 19.481 × 7 =
  20. 20.516 × 3 =
  21. 21.471 × 8 =
  22. 22.172 × 3 =
  23. 23.431 × 6 =
  24. 24.765 × 6 =
  25. 25.861 × 4 =
  26. 26.351 × 4 =
  27. 27.598 × 4 =
  28. 28.381 × 7 =
  29. 29.588 × 4 =
  30. 30.963 × 6 =
  31. 31.271 × 6 =
  32. 32.191 × 6 =
  33. 33.258 × 3 =
  34. 34.145 × 9 =
  35. 35.526 × 4 =
  36. 36.308 × 3 =
  37. 37.364 × 3 =
  38. 38.613 × 3 =
  39. 39.161 × 6 =
  40. 40.237 × 5 =

Answer key

  1. 5112
  2. 7146
  3. 5814
  4. 3374
  5. 3324
  6. 5236
  7. 1734
  8. 5733
  9. 964
  10. 4266
  11. 1836
  12. 702
  13. 4545
  14. 3736
  15. 1806
  16. 6223
  17. 3689
  18. 1416
  19. 3367
  20. 1548
  21. 3768
  22. 516
  23. 2586
  24. 4590
  25. 3444
  26. 1404
  27. 2392
  28. 2667
  29. 2352
  30. 5778
  31. 1626
  32. 1146
  33. 774
  34. 1305
  35. 2104
  36. 924
  37. 1092
  38. 1839
  39. 966
  40. 1185

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