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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 369 · 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. 1.171 × 7 =
  2. 2.564 × 6 =
  3. 3.557 × 9 =
  4. 4.442 × 3 =
  5. 5.788 × 5 =
  6. 6.333 × 6 =
  7. 7.639 × 5 =
  8. 8.174 × 4 =
  9. 9.603 × 3 =
  10. 10.437 × 4 =
  11. 11.676 × 6 =
  12. 12.429 × 4 =
  13. 13.609 × 9 =
  14. 14.598 × 7 =
  15. 15.382 × 3 =
  16. 16.287 × 6 =
  17. 17.841 × 6 =
  18. 18.466 × 9 =
  19. 19.701 × 9 =
  20. 20.952 × 9 =
  21. 21.141 × 5 =
  22. 22.314 × 8 =
  23. 23.731 × 7 =
  24. 24.801 × 5 =
  25. 25.219 × 4 =
  26. 26.699 × 6 =
  27. 27.249 × 4 =
  28. 28.833 × 7 =
  29. 29.847 × 8 =
  30. 30.425 × 7 =
  31. 31.277 × 5 =
  32. 32.327 × 6 =
  33. 33.311 × 3 =
  34. 34.158 × 5 =
  35. 35.165 × 3 =
  36. 36.528 × 7 =
  37. 37.965 × 4 =
  38. 38.573 × 5 =
  39. 39.931 × 5 =
  40. 40.397 × 8 =

Answer key

  1. 1197
  2. 3384
  3. 5013
  4. 1326
  5. 3940
  6. 1998
  7. 3195
  8. 696
  9. 1809
  10. 1748
  11. 4056
  12. 1716
  13. 5481
  14. 4186
  15. 1146
  16. 1722
  17. 5046
  18. 4194
  19. 6309
  20. 8568
  21. 705
  22. 2512
  23. 5117
  24. 4005
  25. 876
  26. 4194
  27. 996
  28. 5831
  29. 6776
  30. 2975
  31. 1385
  32. 1962
  33. 933
  34. 790
  35. 495
  36. 3696
  37. 3860
  38. 2865
  39. 4655
  40. 3176

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