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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 325 · 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. 1.802 × 4 =
  2. 2.415 × 4 =
  3. 3.719 × 4 =
  4. 4.473 × 4 =
  5. 5.568 × 4 =
  6. 6.809 × 5 =
  7. 7.321 × 4 =
  8. 8.515 × 4 =
  9. 9.412 × 8 =
  10. 10.374 × 8 =
  11. 11.312 × 8 =
  12. 12.737 × 8 =
  13. 13.238 × 6 =
  14. 14.767 × 5 =
  15. 15.431 × 5 =
  16. 16.714 × 8 =
  17. 17.885 × 6 =
  18. 18.654 × 6 =
  19. 19.341 × 8 =
  20. 20.208 × 9 =
  21. 21.955 × 5 =
  22. 22.872 × 4 =
  23. 23.561 × 7 =
  24. 24.855 × 9 =
  25. 25.454 × 9 =
  26. 26.475 × 7 =
  27. 27.591 × 9 =
  28. 28.291 × 9 =
  29. 29.691 × 4 =
  30. 30.259 × 6 =
  31. 31.684 × 4 =
  32. 32.125 × 9 =
  33. 33.524 × 6 =
  34. 34.919 × 9 =
  35. 35.601 × 3 =
  36. 36.131 × 8 =
  37. 37.365 × 3 =
  38. 38.278 × 8 =
  39. 39.831 × 6 =
  40. 40.849 × 3 =

Answer key

  1. 3208
  2. 1660
  3. 2876
  4. 1892
  5. 2272
  6. 4045
  7. 1284
  8. 2060
  9. 3296
  10. 2992
  11. 2496
  12. 5896
  13. 1428
  14. 3835
  15. 2155
  16. 5712
  17. 5310
  18. 3924
  19. 2728
  20. 1872
  21. 4775
  22. 3488
  23. 3927
  24. 7695
  25. 4086
  26. 3325
  27. 5319
  28. 2619
  29. 2764
  30. 1554
  31. 2736
  32. 1125
  33. 3144
  34. 8271
  35. 1803
  36. 1048
  37. 1095
  38. 2224
  39. 4986
  40. 2547

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