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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 750 · 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. 1.527 × 5 =
  2. 2.487 × 6 =
  3. 3.324 × 7 =
  4. 4.936 × 5 =
  5. 5.445 × 3 =
  6. 6.432 × 9 =
  7. 7.911 × 3 =
  8. 8.763 × 7 =
  9. 9.297 × 9 =
  10. 10.654 × 5 =
  11. 11.815 × 4 =
  12. 12.573 × 4 =
  13. 13.284 × 9 =
  14. 14.202 × 4 =
  15. 15.911 × 8 =
  16. 16.721 × 3 =
  17. 17.146 × 3 =
  18. 18.336 × 7 =
  19. 19.667 × 9 =
  20. 20.218 × 4 =
  21. 21.863 × 8 =
  22. 22.642 × 4 =
  23. 23.494 × 9 =
  24. 24.139 × 6 =
  25. 25.521 × 7 =
  26. 26.951 × 6 =
  27. 27.469 × 7 =
  28. 28.434 × 3 =
  29. 29.259 × 5 =
  30. 30.626 × 4 =
  31. 31.883 × 6 =
  32. 32.133 × 3 =
  33. 33.699 × 8 =
  34. 34.724 × 7 =
  35. 35.781 × 8 =
  36. 36.313 × 8 =
  37. 37.458 × 4 =
  38. 38.939 × 3 =
  39. 39.671 × 9 =
  40. 40.491 × 3 =

Answer key

  1. 2635
  2. 2922
  3. 2268
  4. 4680
  5. 1335
  6. 3888
  7. 2733
  8. 5341
  9. 2673
  10. 3270
  11. 3260
  12. 2292
  13. 2556
  14. 808
  15. 7288
  16. 2163
  17. 438
  18. 2352
  19. 6003
  20. 872
  21. 6904
  22. 2568
  23. 4446
  24. 834
  25. 3647
  26. 5706
  27. 3283
  28. 1302
  29. 1295
  30. 2504
  31. 5298
  32. 399
  33. 5592
  34. 5068
  35. 6248
  36. 2504
  37. 1832
  38. 2817
  39. 6039
  40. 1473

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