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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 520 · 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. 1.965 × 8 =
  2. 2.588 × 4 =
  3. 3.134 × 3 =
  4. 4.743 × 3 =
  5. 5.153 × 7 =
  6. 6.404 × 9 =
  7. 7.243 × 3 =
  8. 8.259 × 3 =
  9. 9.524 × 3 =
  10. 10.611 × 4 =
  11. 11.612 × 3 =
  12. 12.457 × 4 =
  13. 13.453 × 5 =
  14. 14.696 × 4 =
  15. 15.146 × 9 =
  16. 16.606 × 3 =
  17. 17.251 × 6 =
  18. 18.498 × 8 =
  19. 19.295 × 5 =
  20. 20.121 × 8 =
  21. 21.736 × 5 =
  22. 22.181 × 6 =
  23. 23.542 × 8 =
  24. 24.349 × 8 =
  25. 25.821 × 8 =
  26. 26.984 × 5 =
  27. 27.804 × 9 =
  28. 28.497 × 7 =
  29. 29.124 × 7 =
  30. 30.892 × 7 =
  31. 31.333 × 8 =
  32. 32.514 × 4 =
  33. 33.681 × 9 =
  34. 34.533 × 7 =
  35. 35.733 × 3 =
  36. 36.113 × 4 =
  37. 37.291 × 9 =
  38. 38.154 × 3 =
  39. 39.341 × 3 =
  40. 40.126 × 4 =

Answer key

  1. 7720
  2. 2352
  3. 402
  4. 2229
  5. 1071
  6. 3636
  7. 729
  8. 777
  9. 1572
  10. 2444
  11. 1836
  12. 1828
  13. 2265
  14. 2784
  15. 1314
  16. 1818
  17. 1506
  18. 3984
  19. 1475
  20. 968
  21. 3680
  22. 1086
  23. 4336
  24. 2792
  25. 6568
  26. 4920
  27. 7236
  28. 3479
  29. 868
  30. 6244
  31. 2664
  32. 2056
  33. 6129
  34. 3731
  35. 2199
  36. 452
  37. 2619
  38. 462
  39. 1023
  40. 504

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