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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 65 · 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. 1.235 × 3 =
  2. 2.114 × 4 =
  3. 3.577 × 3 =
  4. 4.274 × 5 =
  5. 5.868 × 5 =
  6. 6.627 × 4 =
  7. 7.641 × 6 =
  8. 8.362 × 5 =
  9. 9.941 × 4 =
  10. 10.708 × 3 =
  11. 11.885 × 9 =
  12. 12.399 × 8 =
  13. 13.903 × 7 =
  14. 14.195 × 9 =
  15. 15.256 × 9 =
  16. 16.961 × 4 =
  17. 17.662 × 4 =
  18. 18.643 × 3 =
  19. 19.309 × 6 =
  20. 20.818 × 5 =
  21. 21.551 × 8 =
  22. 22.411 × 3 =
  23. 23.829 × 6 =
  24. 24.359 × 5 =
  25. 25.575 × 9 =
  26. 26.261 × 5 =
  27. 27.933 × 3 =
  28. 28.687 × 3 =
  29. 29.604 × 7 =
  30. 30.291 × 6 =
  31. 31.114 × 3 =
  32. 32.281 × 6 =
  33. 33.689 × 3 =
  34. 34.608 × 4 =
  35. 35.935 × 3 =
  36. 36.685 × 8 =
  37. 37.946 × 8 =
  38. 38.352 × 5 =
  39. 39.325 × 5 =
  40. 40.506 × 8 =

Answer key

  1. 705
  2. 456
  3. 1731
  4. 1370
  5. 4340
  6. 2508
  7. 3846
  8. 1810
  9. 3764
  10. 2124
  11. 7965
  12. 3192
  13. 6321
  14. 1755
  15. 2304
  16. 3844
  17. 2648
  18. 1929
  19. 1854
  20. 4090
  21. 4408
  22. 1233
  23. 4974
  24. 1795
  25. 5175
  26. 1305
  27. 2799
  28. 2061
  29. 4228
  30. 1746
  31. 342
  32. 1686
  33. 2067
  34. 2432
  35. 2805
  36. 5480
  37. 7568
  38. 1760
  39. 1625
  40. 4048

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