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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 399 · 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. 1.953 × 4 =
  2. 2.674 × 3 =
  3. 3.356 × 6 =
  4. 4.411 × 7 =
  5. 5.797 × 5 =
  6. 6.708 × 4 =
  7. 7.721 × 6 =
  8. 8.822 × 9 =
  9. 9.959 × 6 =
  10. 10.312 × 5 =
  11. 11.617 × 4 =
  12. 12.441 × 8 =
  13. 13.513 × 8 =
  14. 14.271 × 4 =
  15. 15.232 × 3 =
  16. 16.496 × 4 =
  17. 17.487 × 9 =
  18. 18.518 × 3 =
  19. 19.349 × 8 =
  20. 20.191 × 6 =
  21. 21.549 × 4 =
  22. 22.631 × 6 =
  23. 23.572 × 6 =
  24. 24.919 × 7 =
  25. 25.847 × 3 =
  26. 26.479 × 9 =
  27. 27.787 × 7 =
  28. 28.609 × 3 =
  29. 29.215 × 8 =
  30. 30.718 × 3 =
  31. 31.286 × 9 =
  32. 32.621 × 6 =
  33. 33.208 × 7 =
  34. 34.157 × 5 =
  35. 35.636 × 5 =
  36. 36.573 × 5 =
  37. 37.738 × 4 =
  38. 38.528 × 8 =
  39. 39.936 × 6 =
  40. 40.169 × 3 =

Answer key

  1. 3812
  2. 2022
  3. 2136
  4. 2877
  5. 3985
  6. 2832
  7. 4326
  8. 7398
  9. 5754
  10. 1560
  11. 2468
  12. 3528
  13. 4104
  14. 1084
  15. 696
  16. 1984
  17. 4383
  18. 1554
  19. 2792
  20. 1146
  21. 2196
  22. 3786
  23. 3432
  24. 6433
  25. 2541
  26. 4311
  27. 5509
  28. 1827
  29. 1720
  30. 2154
  31. 2574
  32. 3726
  33. 1456
  34. 785
  35. 3180
  36. 2865
  37. 2952
  38. 4224
  39. 5616
  40. 507

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