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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 510 · 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. 1.175 × 3 =
  2. 2.301 × 3 =
  3. 3.348 × 7 =
  4. 4.968 × 3 =
  5. 5.611 × 6 =
  6. 6.891 × 7 =
  7. 7.751 × 7 =
  8. 8.644 × 6 =
  9. 9.196 × 9 =
  10. 10.911 × 6 =
  11. 11.173 × 8 =
  12. 12.416 × 5 =
  13. 13.245 × 8 =
  14. 14.885 × 8 =
  15. 15.506 × 7 =
  16. 16.213 × 5 =
  17. 17.246 × 7 =
  18. 18.785 × 9 =
  19. 19.363 × 7 =
  20. 20.738 × 8 =
  21. 21.636 × 6 =
  22. 22.461 × 7 =
  23. 23.488 × 9 =
  24. 24.525 × 7 =
  25. 25.481 × 3 =
  26. 26.921 × 9 =
  27. 27.929 × 7 =
  28. 28.817 × 4 =
  29. 29.384 × 9 =
  30. 30.236 × 6 =
  31. 31.739 × 5 =
  32. 32.654 × 4 =
  33. 33.829 × 5 =
  34. 34.799 × 6 =
  35. 35.501 × 5 =
  36. 36.703 × 4 =
  37. 37.273 × 5 =
  38. 38.793 × 5 =
  39. 39.771 × 5 =
  40. 40.628 × 9 =

Answer key

  1. 525
  2. 903
  3. 2436
  4. 2904
  5. 3666
  6. 6237
  7. 5257
  8. 3864
  9. 1764
  10. 5466
  11. 1384
  12. 2080
  13. 1960
  14. 7080
  15. 3542
  16. 1065
  17. 1722
  18. 7065
  19. 2541
  20. 5904
  21. 3816
  22. 3227
  23. 4392
  24. 3675
  25. 1443
  26. 8289
  27. 6503
  28. 3268
  29. 3456
  30. 1416
  31. 3695
  32. 2616
  33. 4145
  34. 4794
  35. 2505
  36. 2812
  37. 1365
  38. 3965
  39. 3855
  40. 5652

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