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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 476 · 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. 1.651 × 8 =
  2. 2.338 × 4 =
  3. 3.784 × 7 =
  4. 4.181 × 7 =
  5. 5.411 × 8 =
  6. 6.453 × 4 =
  7. 7.412 × 9 =
  8. 8.809 × 6 =
  9. 9.886 × 7 =
  10. 10.179 × 9 =
  11. 11.501 × 3 =
  12. 12.514 × 3 =
  13. 13.398 × 7 =
  14. 14.317 × 5 =
  15. 15.195 × 3 =
  16. 16.341 × 5 =
  17. 17.878 × 8 =
  18. 18.116 × 8 =
  19. 19.545 × 9 =
  20. 20.521 × 5 =
  21. 21.421 × 3 =
  22. 22.716 × 6 =
  23. 23.687 × 7 =
  24. 24.955 × 9 =
  25. 25.343 × 8 =
  26. 26.925 × 3 =
  27. 27.205 × 9 =
  28. 28.535 × 3 =
  29. 29.681 × 9 =
  30. 30.599 × 5 =
  31. 31.867 × 8 =
  32. 32.791 × 5 =
  33. 33.787 × 3 =
  34. 34.341 × 3 =
  35. 35.729 × 3 =
  36. 36.158 × 7 =
  37. 37.489 × 8 =
  38. 38.188 × 7 =
  39. 39.336 × 7 =
  40. 40.566 × 6 =

Answer key

  1. 5208
  2. 1352
  3. 5488
  4. 1267
  5. 3288
  6. 1812
  7. 3708
  8. 4854
  9. 6202
  10. 1611
  11. 1503
  12. 1542
  13. 2786
  14. 1585
  15. 585
  16. 1705
  17. 7024
  18. 928
  19. 4905
  20. 2605
  21. 1263
  22. 4296
  23. 4809
  24. 8595
  25. 2744
  26. 2775
  27. 1845
  28. 1605
  29. 6129
  30. 2995
  31. 6936
  32. 3955
  33. 2361
  34. 1023
  35. 2187
  36. 1106
  37. 3912
  38. 1316
  39. 2352
  40. 3396

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