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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 529 · 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. 1.921 × 5 =
  2. 2.143 × 4 =
  3. 3.813 × 9 =
  4. 4.377 × 4 =
  5. 5.716 × 4 =
  6. 6.281 × 6 =
  7. 7.551 × 5 =
  8. 8.863 × 9 =
  9. 9.848 × 6 =
  10. 10.431 × 6 =
  11. 11.574 × 9 =
  12. 12.922 × 6 =
  13. 13.553 × 8 =
  14. 14.636 × 4 =
  15. 15.714 × 5 =
  16. 16.484 × 6 =
  17. 17.506 × 9 =
  18. 18.168 × 4 =
  19. 19.809 × 7 =
  20. 20.792 × 9 =
  21. 21.241 × 6 =
  22. 22.934 × 8 =
  23. 23.223 × 3 =
  24. 24.748 × 8 =
  25. 25.277 × 3 =
  26. 26.614 × 3 =
  27. 27.334 × 3 =
  28. 28.686 × 7 =
  29. 29.483 × 9 =
  30. 30.243 × 4 =
  31. 31.262 × 3 =
  32. 32.743 × 3 =
  33. 33.259 × 3 =
  34. 34.511 × 9 =
  35. 35.736 × 7 =
  36. 36.692 × 5 =
  37. 37.146 × 9 =
  38. 38.725 × 7 =
  39. 39.726 × 8 =
  40. 40.348 × 7 =

Answer key

  1. 4605
  2. 572
  3. 7317
  4. 1508
  5. 2864
  6. 1686
  7. 2755
  8. 7767
  9. 5088
  10. 2586
  11. 5166
  12. 5532
  13. 4424
  14. 2544
  15. 3570
  16. 2904
  17. 4554
  18. 672
  19. 5663
  20. 7128
  21. 1446
  22. 7472
  23. 669
  24. 5984
  25. 831
  26. 1842
  27. 1002
  28. 4802
  29. 4347
  30. 972
  31. 786
  32. 2229
  33. 777
  34. 4599
  35. 5152
  36. 3460
  37. 1314
  38. 5075
  39. 5808
  40. 2436

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