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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 785 · 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. 1.672 × 5 =
  2. 2.438 × 7 =
  3. 3.894 × 4 =
  4. 4.965 × 9 =
  5. 5.844 × 4 =
  6. 6.968 × 3 =
  7. 7.393 × 8 =
  8. 8.506 × 3 =
  9. 9.485 × 6 =
  10. 10.561 × 8 =
  11. 11.779 × 3 =
  12. 12.621 × 4 =
  13. 13.663 × 3 =
  14. 14.559 × 4 =
  15. 15.477 × 7 =
  16. 16.325 × 5 =
  17. 17.736 × 8 =
  18. 18.641 × 4 =
  19. 19.518 × 7 =
  20. 20.443 × 4 =
  21. 21.533 × 4 =
  22. 22.814 × 3 =
  23. 23.162 × 7 =
  24. 24.281 × 4 =
  25. 25.672 × 9 =
  26. 26.678 × 7 =
  27. 27.983 × 9 =
  28. 28.218 × 3 =
  29. 29.567 × 5 =
  30. 30.345 × 8 =
  31. 31.799 × 3 =
  32. 32.783 × 6 =
  33. 33.756 × 3 =
  34. 34.783 × 7 =
  35. 35.581 × 7 =
  36. 36.471 × 9 =
  37. 37.367 × 9 =
  38. 38.201 × 7 =
  39. 39.217 × 6 =
  40. 40.879 × 4 =

Answer key

  1. 3360
  2. 3066
  3. 3576
  4. 8685
  5. 3376
  6. 2904
  7. 3144
  8. 1518
  9. 2910
  10. 4488
  11. 2337
  12. 2484
  13. 1989
  14. 2236
  15. 3339
  16. 1625
  17. 5888
  18. 2564
  19. 3626
  20. 1772
  21. 2132
  22. 2442
  23. 1134
  24. 1124
  25. 6048
  26. 4746
  27. 8847
  28. 654
  29. 2835
  30. 2760
  31. 2397
  32. 4698
  33. 2268
  34. 5481
  35. 4067
  36. 4239
  37. 3303
  38. 1407
  39. 1302
  40. 3516

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