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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 453 · 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. 1.643 × 3 =
  2. 2.672 × 5 =
  3. 3.929 × 6 =
  4. 4.349 × 9 =
  5. 5.238 × 9 =
  6. 6.336 × 6 =
  7. 7.331 × 8 =
  8. 8.196 × 6 =
  9. 9.319 × 5 =
  10. 10.772 × 9 =
  11. 11.501 × 9 =
  12. 12.928 × 9 =
  13. 13.254 × 8 =
  14. 14.975 × 6 =
  15. 15.935 × 4 =
  16. 16.682 × 4 =
  17. 17.346 × 7 =
  18. 18.629 × 3 =
  19. 19.681 × 3 =
  20. 20.985 × 9 =
  21. 21.269 × 7 =
  22. 22.948 × 3 =
  23. 23.903 × 3 =
  24. 24.675 × 4 =
  25. 25.469 × 4 =
  26. 26.661 × 4 =
  27. 27.615 × 9 =
  28. 28.784 × 4 =
  29. 29.571 × 9 =
  30. 30.343 × 6 =
  31. 31.361 × 6 =
  32. 32.989 × 4 =
  33. 33.977 × 6 =
  34. 34.388 × 7 =
  35. 35.627 × 8 =
  36. 36.391 × 9 =
  37. 37.864 × 7 =
  38. 38.744 × 6 =
  39. 39.411 × 8 =
  40. 40.641 × 9 =

Answer key

  1. 1929
  2. 3360
  3. 5574
  4. 3141
  5. 2142
  6. 2016
  7. 2648
  8. 1176
  9. 1595
  10. 6948
  11. 4509
  12. 8352
  13. 2032
  14. 5850
  15. 3740
  16. 2728
  17. 2422
  18. 1887
  19. 2043
  20. 8865
  21. 1883
  22. 2844
  23. 2709
  24. 2700
  25. 1876
  26. 2644
  27. 5535
  28. 3136
  29. 5139
  30. 2058
  31. 2166
  32. 3956
  33. 5862
  34. 2716
  35. 5016
  36. 3519
  37. 6048
  38. 4464
  39. 3288
  40. 5769

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