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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 211 · 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. 1.981 × 4 =
  2. 2.261 × 5 =
  3. 3.175 × 4 =
  4. 4.155 × 3 =
  5. 5.636 × 8 =
  6. 6.833 × 8 =
  7. 7.978 × 9 =
  8. 8.381 × 7 =
  9. 9.335 × 4 =
  10. 10.561 × 9 =
  11. 11.306 × 6 =
  12. 12.167 × 7 =
  13. 13.445 × 8 =
  14. 14.706 × 4 =
  15. 15.354 × 5 =
  16. 16.359 × 3 =
  17. 17.642 × 6 =
  18. 18.277 × 8 =
  19. 19.536 × 4 =
  20. 20.451 × 4 =
  21. 21.915 × 5 =
  22. 22.703 × 8 =
  23. 23.695 × 6 =
  24. 24.378 × 8 =
  25. 25.347 × 3 =
  26. 26.646 × 5 =
  27. 27.324 × 9 =
  28. 28.127 × 8 =
  29. 29.686 × 7 =
  30. 30.733 × 4 =
  31. 31.649 × 7 =
  32. 32.359 × 8 =
  33. 33.684 × 8 =
  34. 34.937 × 6 =
  35. 35.302 × 3 =
  36. 36.123 × 6 =
  37. 37.581 × 6 =
  38. 38.519 × 7 =
  39. 39.442 × 5 =
  40. 40.123 × 8 =

Answer key

  1. 3924
  2. 1305
  3. 700
  4. 465
  5. 5088
  6. 6664
  7. 8802
  8. 2667
  9. 1340
  10. 5049
  11. 1836
  12. 1169
  13. 3560
  14. 2824
  15. 1770
  16. 1077
  17. 3852
  18. 2216
  19. 2144
  20. 1804
  21. 4575
  22. 5624
  23. 4170
  24. 3024
  25. 1041
  26. 3230
  27. 2916
  28. 1016
  29. 4802
  30. 2932
  31. 4543
  32. 2872
  33. 5472
  34. 5622
  35. 906
  36. 738
  37. 3486
  38. 3633
  39. 2210
  40. 984

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