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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 435 · 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. 1.533 × 4 =
  2. 2.635 × 8 =
  3. 3.984 × 4 =
  4. 4.947 × 4 =
  5. 5.201 × 7 =
  6. 6.311 × 8 =
  7. 7.588 × 4 =
  8. 8.269 × 4 =
  9. 9.241 × 7 =
  10. 10.551 × 7 =
  11. 11.459 × 3 =
  12. 12.653 × 8 =
  13. 13.355 × 5 =
  14. 14.684 × 9 =
  15. 15.299 × 8 =
  16. 16.875 × 3 =
  17. 17.856 × 3 =
  18. 18.131 × 4 =
  19. 19.284 × 9 =
  20. 20.958 × 9 =
  21. 21.335 × 7 =
  22. 22.281 × 4 =
  23. 23.954 × 7 =
  24. 24.384 × 7 =
  25. 25.785 × 6 =
  26. 26.348 × 3 =
  27. 27.512 × 6 =
  28. 28.751 × 9 =
  29. 29.649 × 9 =
  30. 30.189 × 7 =
  31. 31.234 × 3 =
  32. 32.339 × 4 =
  33. 33.527 × 4 =
  34. 34.966 × 9 =
  35. 35.821 × 7 =
  36. 36.525 × 4 =
  37. 37.841 × 7 =
  38. 38.353 × 5 =
  39. 39.574 × 6 =
  40. 40.331 × 7 =

Answer key

  1. 2132
  2. 5080
  3. 3936
  4. 3788
  5. 1407
  6. 2488
  7. 2352
  8. 1076
  9. 1687
  10. 3857
  11. 1377
  12. 5224
  13. 1775
  14. 6156
  15. 2392
  16. 2625
  17. 2568
  18. 524
  19. 2556
  20. 8622
  21. 2345
  22. 1124
  23. 6678
  24. 2688
  25. 4710
  26. 1044
  27. 3072
  28. 6759
  29. 5841
  30. 1323
  31. 702
  32. 1356
  33. 2108
  34. 8694
  35. 5747
  36. 2100
  37. 5887
  38. 1765
  39. 3444
  40. 2317

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