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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 550 · 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. 1.372 × 3 =
  2. 2.538 × 4 =
  3. 3.238 × 3 =
  4. 4.571 × 5 =
  5. 5.317 × 6 =
  6. 6.591 × 4 =
  7. 7.941 × 3 =
  8. 8.692 × 5 =
  9. 9.808 × 9 =
  10. 10.652 × 4 =
  11. 11.427 × 4 =
  12. 12.308 × 4 =
  13. 13.159 × 4 =
  14. 14.278 × 4 =
  15. 15.711 × 6 =
  16. 16.356 × 7 =
  17. 17.927 × 6 =
  18. 18.251 × 5 =
  19. 19.581 × 3 =
  20. 20.131 × 8 =
  21. 21.445 × 8 =
  22. 22.786 × 8 =
  23. 23.363 × 5 =
  24. 24.301 × 5 =
  25. 25.621 × 5 =
  26. 26.365 × 4 =
  27. 27.491 × 9 =
  28. 28.245 × 9 =
  29. 29.735 × 5 =
  30. 30.631 × 8 =
  31. 31.807 × 7 =
  32. 32.774 × 9 =
  33. 33.944 × 3 =
  34. 34.386 × 4 =
  35. 35.147 × 8 =
  36. 36.661 × 3 =
  37. 37.336 × 4 =
  38. 38.334 × 3 =
  39. 39.442 × 4 =
  40. 40.396 × 8 =

Answer key

  1. 1116
  2. 2152
  3. 714
  4. 2855
  5. 1902
  6. 2364
  7. 2823
  8. 3460
  9. 7272
  10. 2608
  11. 1708
  12. 1232
  13. 636
  14. 1112
  15. 4266
  16. 2492
  17. 5562
  18. 1255
  19. 1743
  20. 1048
  21. 3560
  22. 6288
  23. 1815
  24. 1505
  25. 3105
  26. 1460
  27. 4419
  28. 2205
  29. 3675
  30. 5048
  31. 5649
  32. 6966
  33. 2832
  34. 1544
  35. 1176
  36. 1983
  37. 1344
  38. 1002
  39. 1768
  40. 3168

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