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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 447 · 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. 1.694 × 5 =
  2. 2.173 × 8 =
  3. 3.631 × 8 =
  4. 4.807 × 9 =
  5. 5.717 × 7 =
  6. 6.781 × 4 =
  7. 7.341 × 5 =
  8. 8.532 × 7 =
  9. 9.173 × 7 =
  10. 10.452 × 4 =
  11. 11.888 × 8 =
  12. 12.151 × 3 =
  13. 13.818 × 7 =
  14. 14.924 × 6 =
  15. 15.112 × 3 =
  16. 16.446 × 3 =
  17. 17.745 × 4 =
  18. 18.622 × 9 =
  19. 19.763 × 9 =
  20. 20.707 × 4 =
  21. 21.409 × 8 =
  22. 22.537 × 3 =
  23. 23.364 × 5 =
  24. 24.644 × 5 =
  25. 25.495 × 8 =
  26. 26.349 × 4 =
  27. 27.811 × 3 =
  28. 28.457 × 9 =
  29. 29.518 × 9 =
  30. 30.884 × 5 =
  31. 31.425 × 4 =
  32. 32.886 × 7 =
  33. 33.221 × 3 =
  34. 34.886 × 5 =
  35. 35.204 × 7 =
  36. 36.867 × 4 =
  37. 37.517 × 6 =
  38. 38.377 × 8 =
  39. 39.851 × 6 =
  40. 40.872 × 3 =

Answer key

  1. 3470
  2. 1384
  3. 5048
  4. 7263
  5. 5019
  6. 3124
  7. 1705
  8. 3724
  9. 1211
  10. 1808
  11. 7104
  12. 453
  13. 5726
  14. 5544
  15. 336
  16. 1338
  17. 2980
  18. 5598
  19. 6867
  20. 2828
  21. 3272
  22. 1611
  23. 1820
  24. 3220
  25. 3960
  26. 1396
  27. 2433
  28. 4113
  29. 4662
  30. 4420
  31. 1700
  32. 6202
  33. 663
  34. 4430
  35. 1428
  36. 3468
  37. 3102
  38. 3016
  39. 5106
  40. 2616

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