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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 234 · 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. 1.924 × 4 =
  2. 2.237 × 4 =
  3. 3.188 × 4 =
  4. 4.777 × 4 =
  5. 5.556 × 4 =
  6. 6.183 × 4 =
  7. 7.833 × 6 =
  8. 8.424 × 4 =
  9. 9.326 × 4 =
  10. 10.683 × 5 =
  11. 11.311 × 6 =
  12. 12.129 × 9 =
  13. 13.866 × 7 =
  14. 14.805 × 7 =
  15. 15.671 × 3 =
  16. 16.564 × 4 =
  17. 17.211 × 4 =
  18. 18.571 × 8 =
  19. 19.229 × 7 =
  20. 20.986 × 6 =
  21. 21.731 × 8 =
  22. 22.478 × 9 =
  23. 23.249 × 6 =
  24. 24.415 × 6 =
  25. 25.519 × 8 =
  26. 26.293 × 5 =
  27. 27.598 × 3 =
  28. 28.175 × 8 =
  29. 29.142 × 8 =
  30. 30.734 × 8 =
  31. 31.528 × 7 =
  32. 32.233 × 6 =
  33. 33.774 × 5 =
  34. 34.831 × 9 =
  35. 35.501 × 4 =
  36. 36.201 × 6 =
  37. 37.842 × 7 =
  38. 38.677 × 4 =
  39. 39.328 × 5 =
  40. 40.926 × 6 =

Answer key

  1. 3696
  2. 948
  3. 752
  4. 3108
  5. 2224
  6. 732
  7. 4998
  8. 1696
  9. 1304
  10. 3415
  11. 1866
  12. 1161
  13. 6062
  14. 5635
  15. 2013
  16. 2256
  17. 844
  18. 4568
  19. 1603
  20. 5916
  21. 5848
  22. 4302
  23. 1494
  24. 2490
  25. 4152
  26. 1465
  27. 1794
  28. 1400
  29. 1136
  30. 5872
  31. 3696
  32. 1398
  33. 3870
  34. 7479
  35. 2004
  36. 1206
  37. 5894
  38. 2708
  39. 1640
  40. 5556

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