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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 801 · 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. 1.389 × 8 =
  2. 2.201 × 4 =
  3. 3.447 × 4 =
  4. 4.551 × 6 =
  5. 5.451 × 3 =
  6. 6.681 × 6 =
  7. 7.221 × 4 =
  8. 8.181 × 4 =
  9. 9.886 × 8 =
  10. 10.753 × 7 =
  11. 11.466 × 7 =
  12. 12.762 × 5 =
  13. 13.797 × 8 =
  14. 14.431 × 9 =
  15. 15.611 × 3 =
  16. 16.744 × 3 =
  17. 17.382 × 4 =
  18. 18.261 × 6 =
  19. 19.983 × 9 =
  20. 20.728 × 8 =
  21. 21.233 × 7 =
  22. 22.598 × 5 =
  23. 23.768 × 3 =
  24. 24.849 × 8 =
  25. 25.406 × 7 =
  26. 26.591 × 7 =
  27. 27.884 × 3 =
  28. 28.551 × 4 =
  29. 29.895 × 7 =
  30. 30.819 × 5 =
  31. 31.662 × 5 =
  32. 32.716 × 9 =
  33. 33.186 × 3 =
  34. 34.546 × 4 =
  35. 35.652 × 4 =
  36. 36.117 × 9 =
  37. 37.682 × 4 =
  38. 38.577 × 8 =
  39. 39.183 × 9 =
  40. 40.371 × 5 =

Answer key

  1. 3112
  2. 804
  3. 1788
  4. 3306
  5. 1353
  6. 4086
  7. 884
  8. 724
  9. 7088
  10. 5271
  11. 3262
  12. 3810
  13. 6376
  14. 3879
  15. 1833
  16. 2232
  17. 1528
  18. 1566
  19. 8847
  20. 5824
  21. 1631
  22. 2990
  23. 2304
  24. 6792
  25. 2842
  26. 4137
  27. 2652
  28. 2204
  29. 6265
  30. 4095
  31. 3310
  32. 6444
  33. 558
  34. 2184
  35. 2608
  36. 1053
  37. 2728
  38. 4616
  39. 1647
  40. 1855

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