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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 392 · 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. 1.517 × 4 =
  2. 2.328 × 7 =
  3. 3.182 × 3 =
  4. 4.716 × 9 =
  5. 5.129 × 3 =
  6. 6.267 × 9 =
  7. 7.766 × 8 =
  8. 8.943 × 8 =
  9. 9.525 × 4 =
  10. 10.454 × 3 =
  11. 11.737 × 9 =
  12. 12.755 × 6 =
  13. 13.118 × 7 =
  14. 14.344 × 4 =
  15. 15.763 × 5 =
  16. 16.291 × 3 =
  17. 17.924 × 3 =
  18. 18.707 × 3 =
  19. 19.462 × 3 =
  20. 20.678 × 5 =
  21. 21.607 × 9 =
  22. 22.913 × 4 =
  23. 23.719 × 6 =
  24. 24.915 × 9 =
  25. 25.293 × 6 =
  26. 26.585 × 8 =
  27. 27.652 × 6 =
  28. 28.535 × 7 =
  29. 29.568 × 5 =
  30. 30.469 × 7 =
  31. 31.761 × 3 =
  32. 32.557 × 6 =
  33. 33.481 × 8 =
  34. 34.211 × 4 =
  35. 35.801 × 4 =
  36. 36.763 × 4 =
  37. 37.819 × 5 =
  38. 38.904 × 4 =
  39. 39.229 × 6 =
  40. 40.424 × 4 =

Answer key

  1. 2068
  2. 2296
  3. 546
  4. 6444
  5. 387
  6. 2403
  7. 6128
  8. 7544
  9. 2100
  10. 1362
  11. 6633
  12. 4530
  13. 826
  14. 1376
  15. 3815
  16. 873
  17. 2772
  18. 2121
  19. 1386
  20. 3390
  21. 5463
  22. 3652
  23. 4314
  24. 8235
  25. 1758
  26. 4680
  27. 3912
  28. 3745
  29. 2840
  30. 3283
  31. 2283
  32. 3342
  33. 3848
  34. 844
  35. 3204
  36. 3052
  37. 4095
  38. 3616
  39. 1374
  40. 1696

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