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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 98 · 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. 1.694 × 5 =
  2. 2.961 × 4 =
  3. 3.539 × 6 =
  4. 4.281 × 4 =
  5. 5.549 × 9 =
  6. 6.213 × 6 =
  7. 7.209 × 3 =
  8. 8.226 × 8 =
  9. 9.873 × 9 =
  10. 10.733 × 4 =
  11. 11.417 × 3 =
  12. 12.195 × 6 =
  13. 13.854 × 7 =
  14. 14.435 × 8 =
  15. 15.698 × 6 =
  16. 16.877 × 3 =
  17. 17.494 × 3 =
  18. 18.787 × 4 =
  19. 19.484 × 9 =
  20. 20.765 × 9 =
  21. 21.236 × 9 =
  22. 22.528 × 7 =
  23. 23.482 × 5 =
  24. 24.348 × 3 =
  25. 25.692 × 8 =
  26. 26.943 × 3 =
  27. 27.779 × 3 =
  28. 28.265 × 8 =
  29. 29.364 × 9 =
  30. 30.801 × 8 =
  31. 31.265 × 3 =
  32. 32.675 × 8 =
  33. 33.954 × 9 =
  34. 34.277 × 3 =
  35. 35.935 × 3 =
  36. 36.427 × 9 =
  37. 37.963 × 8 =
  38. 38.182 × 9 =
  39. 39.743 × 3 =
  40. 40.981 × 5 =

Answer key

  1. 3470
  2. 3844
  3. 3234
  4. 1124
  5. 4941
  6. 1278
  7. 627
  8. 1808
  9. 7857
  10. 2932
  11. 1251
  12. 1170
  13. 5978
  14. 3480
  15. 4188
  16. 2631
  17. 1482
  18. 3148
  19. 4356
  20. 6885
  21. 2124
  22. 3696
  23. 2410
  24. 1044
  25. 5536
  26. 2829
  27. 2337
  28. 2120
  29. 3276
  30. 6408
  31. 795
  32. 5400
  33. 8586
  34. 831
  35. 2805
  36. 3843
  37. 7704
  38. 1638
  39. 2229
  40. 4905

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