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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 46 · 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. 1.236 × 7 =
  2. 2.876 × 9 =
  3. 3.753 × 7 =
  4. 4.695 × 5 =
  5. 5.867 × 6 =
  6. 6.646 × 5 =
  7. 7.162 × 4 =
  8. 8.342 × 9 =
  9. 9.597 × 3 =
  10. 10.523 × 8 =
  11. 11.642 × 3 =
  12. 12.172 × 3 =
  13. 13.587 × 8 =
  14. 14.837 × 5 =
  15. 15.126 × 9 =
  16. 16.324 × 9 =
  17. 17.502 × 4 =
  18. 18.451 × 3 =
  19. 19.309 × 3 =
  20. 20.526 × 9 =
  21. 21.299 × 4 =
  22. 22.172 × 5 =
  23. 23.756 × 4 =
  24. 24.923 × 6 =
  25. 25.907 × 3 =
  26. 26.919 × 6 =
  27. 27.695 × 3 =
  28. 28.241 × 8 =
  29. 29.605 × 4 =
  30. 30.302 × 3 =
  31. 31.587 × 4 =
  32. 32.488 × 3 =
  33. 33.828 × 4 =
  34. 34.626 × 5 =
  35. 35.285 × 8 =
  36. 36.141 × 3 =
  37. 37.405 × 7 =
  38. 38.918 × 4 =
  39. 39.472 × 9 =
  40. 40.819 × 6 =

Answer key

  1. 1652
  2. 7884
  3. 5271
  4. 3475
  5. 5202
  6. 3230
  7. 648
  8. 3078
  9. 1791
  10. 4184
  11. 1926
  12. 516
  13. 4696
  14. 4185
  15. 1134
  16. 2916
  17. 2008
  18. 1353
  19. 927
  20. 4734
  21. 1196
  22. 860
  23. 3024
  24. 5538
  25. 2721
  26. 5514
  27. 2085
  28. 1928
  29. 2420
  30. 906
  31. 2348
  32. 1464
  33. 3312
  34. 3130
  35. 2280
  36. 423
  37. 2835
  38. 3672
  39. 4248
  40. 4914

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