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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 514 · 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. 1.166 × 9 =
  2. 2.638 × 8 =
  3. 3.289 × 6 =
  4. 4.701 × 6 =
  5. 5.232 × 4 =
  6. 6.241 × 3 =
  7. 7.155 × 6 =
  8. 8.979 × 5 =
  9. 9.458 × 9 =
  10. 10.274 × 5 =
  11. 11.265 × 4 =
  12. 12.256 × 6 =
  13. 13.605 × 7 =
  14. 14.481 × 9 =
  15. 15.504 × 4 =
  16. 16.222 × 9 =
  17. 17.908 × 3 =
  18. 18.265 × 8 =
  19. 19.681 × 5 =
  20. 20.464 × 5 =
  21. 21.887 × 8 =
  22. 22.571 × 9 =
  23. 23.171 × 4 =
  24. 24.237 × 6 =
  25. 25.933 × 6 =
  26. 26.541 × 8 =
  27. 27.199 × 5 =
  28. 28.618 × 3 =
  29. 29.887 × 7 =
  30. 30.933 × 3 =
  31. 31.388 × 5 =
  32. 32.988 × 6 =
  33. 33.875 × 8 =
  34. 34.192 × 9 =
  35. 35.499 × 9 =
  36. 36.217 × 7 =
  37. 37.219 × 9 =
  38. 38.156 × 7 =
  39. 39.131 × 6 =
  40. 40.734 × 5 =

Answer key

  1. 1494
  2. 5104
  3. 1734
  4. 4206
  5. 928
  6. 723
  7. 930
  8. 4895
  9. 4122
  10. 1370
  11. 1060
  12. 1536
  13. 4235
  14. 4329
  15. 2016
  16. 1998
  17. 2724
  18. 2120
  19. 3405
  20. 2320
  21. 7096
  22. 5139
  23. 684
  24. 1422
  25. 5598
  26. 4328
  27. 995
  28. 1854
  29. 6209
  30. 2799
  31. 1940
  32. 5928
  33. 7000
  34. 1728
  35. 4491
  36. 1519
  37. 1971
  38. 1092
  39. 786
  40. 3670

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