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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 493 · 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. 1.899 × 5 =
  2. 2.425 × 3 =
  3. 3.571 × 9 =
  4. 4.551 × 5 =
  5. 5.641 × 8 =
  6. 6.977 × 7 =
  7. 7.522 × 4 =
  8. 8.903 × 8 =
  9. 9.494 × 5 =
  10. 10.907 × 8 =
  11. 11.898 × 8 =
  12. 12.235 × 8 =
  13. 13.549 × 9 =
  14. 14.988 × 4 =
  15. 15.789 × 6 =
  16. 16.867 × 5 =
  17. 17.365 × 4 =
  18. 18.581 × 6 =
  19. 19.483 × 7 =
  20. 20.608 × 5 =
  21. 21.198 × 7 =
  22. 22.382 × 8 =
  23. 23.146 × 4 =
  24. 24.913 × 6 =
  25. 25.621 × 6 =
  26. 26.317 × 5 =
  27. 27.333 × 8 =
  28. 28.844 × 9 =
  29. 29.476 × 7 =
  30. 30.191 × 8 =
  31. 31.131 × 7 =
  32. 32.684 × 3 =
  33. 33.989 × 3 =
  34. 34.369 × 8 =
  35. 35.611 × 5 =
  36. 36.275 × 6 =
  37. 37.429 × 5 =
  38. 38.487 × 8 =
  39. 39.163 × 6 =
  40. 40.912 × 7 =

Answer key

  1. 4495
  2. 1275
  3. 5139
  4. 2755
  5. 5128
  6. 6839
  7. 2088
  8. 7224
  9. 2470
  10. 7256
  11. 7184
  12. 1880
  13. 4941
  14. 3952
  15. 4734
  16. 4335
  17. 1460
  18. 3486
  19. 3381
  20. 3040
  21. 1386
  22. 3056
  23. 584
  24. 5478
  25. 3726
  26. 1585
  27. 2664
  28. 7596
  29. 3332
  30. 1528
  31. 917
  32. 2052
  33. 2967
  34. 2952
  35. 3055
  36. 1650
  37. 2145
  38. 3896
  39. 978
  40. 6384

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