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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 419 · 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. 1.513 × 9 =
  2. 2.821 × 9 =
  3. 3.823 × 4 =
  4. 4.211 × 6 =
  5. 5.847 × 7 =
  6. 6.964 × 7 =
  7. 7.536 × 6 =
  8. 8.296 × 7 =
  9. 9.897 × 8 =
  10. 10.427 × 7 =
  11. 11.679 × 8 =
  12. 12.593 × 3 =
  13. 13.908 × 9 =
  14. 14.242 × 9 =
  15. 15.341 × 3 =
  16. 16.169 × 8 =
  17. 17.714 × 9 =
  18. 18.564 × 4 =
  19. 19.379 × 6 =
  20. 20.862 × 6 =
  21. 21.296 × 9 =
  22. 22.323 × 5 =
  23. 23.705 × 3 =
  24. 24.642 × 3 =
  25. 25.451 × 3 =
  26. 26.646 × 7 =
  27. 27.286 × 6 =
  28. 28.931 × 8 =
  29. 29.311 × 9 =
  30. 30.565 × 3 =
  31. 31.479 × 8 =
  32. 32.382 × 5 =
  33. 33.233 × 5 =
  34. 34.279 × 6 =
  35. 35.461 × 5 =
  36. 36.193 × 7 =
  37. 37.327 × 7 =
  38. 38.444 × 7 =
  39. 39.166 × 6 =
  40. 40.663 × 5 =

Answer key

  1. 4617
  2. 7389
  3. 3292
  4. 1266
  5. 5929
  6. 6748
  7. 3216
  8. 2072
  9. 7176
  10. 2989
  11. 5432
  12. 1779
  13. 8172
  14. 2178
  15. 1023
  16. 1352
  17. 6426
  18. 2256
  19. 2274
  20. 5172
  21. 2664
  22. 1615
  23. 2115
  24. 1926
  25. 1353
  26. 4522
  27. 1716
  28. 7448
  29. 2799
  30. 1695
  31. 3832
  32. 1910
  33. 1165
  34. 1674
  35. 2305
  36. 1351
  37. 2289
  38. 3108
  39. 996
  40. 3315

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