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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 245 · 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. 1.301 × 4 =
  2. 2.576 × 4 =
  3. 3.695 × 4 =
  4. 4.487 × 7 =
  5. 5.828 × 7 =
  6. 6.647 × 8 =
  7. 7.223 × 3 =
  8. 8.435 × 9 =
  9. 9.688 × 9 =
  10. 10.446 × 9 =
  11. 11.532 × 3 =
  12. 12.585 × 9 =
  13. 13.544 × 7 =
  14. 14.399 × 8 =
  15. 15.167 × 4 =
  16. 16.266 × 5 =
  17. 17.412 × 9 =
  18. 18.804 × 4 =
  19. 19.443 × 3 =
  20. 20.764 × 9 =
  21. 21.191 × 3 =
  22. 22.531 × 4 =
  23. 23.821 × 4 =
  24. 24.981 × 9 =
  25. 25.161 × 9 =
  26. 26.958 × 3 =
  27. 27.482 × 9 =
  28. 28.117 × 8 =
  29. 29.745 × 4 =
  30. 30.545 × 9 =
  31. 31.702 × 3 =
  32. 32.911 × 3 =
  33. 33.498 × 5 =
  34. 34.609 × 3 =
  35. 35.948 × 4 =
  36. 36.452 × 7 =
  37. 37.615 × 3 =
  38. 38.369 × 4 =
  39. 39.815 × 3 =
  40. 40.781 × 3 =

Answer key

  1. 1204
  2. 2304
  3. 2780
  4. 3409
  5. 5796
  6. 5176
  7. 669
  8. 3915
  9. 6192
  10. 4014
  11. 1596
  12. 5265
  13. 3808
  14. 3192
  15. 668
  16. 1330
  17. 3708
  18. 3216
  19. 1329
  20. 6876
  21. 573
  22. 2124
  23. 3284
  24. 8829
  25. 1449
  26. 2874
  27. 4338
  28. 936
  29. 2980
  30. 4905
  31. 2106
  32. 2733
  33. 2490
  34. 1827
  35. 3792
  36. 3164
  37. 1845
  38. 1476
  39. 2445
  40. 2343

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