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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 899 · 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. 1.551 × 6 =
  2. 2.755 × 7 =
  3. 3.209 × 8 =
  4. 4.981 × 9 =
  5. 5.354 × 3 =
  6. 6.617 × 7 =
  7. 7.672 × 5 =
  8. 8.333 × 7 =
  9. 9.899 × 8 =
  10. 10.341 × 7 =
  11. 11.148 × 5 =
  12. 12.664 × 9 =
  13. 13.712 × 7 =
  14. 14.407 × 9 =
  15. 15.449 × 6 =
  16. 16.778 × 6 =
  17. 17.532 × 7 =
  18. 18.858 × 7 =
  19. 19.722 × 9 =
  20. 20.571 × 4 =
  21. 21.269 × 3 =
  22. 22.431 × 6 =
  23. 23.563 × 3 =
  24. 24.351 × 3 =
  25. 25.462 × 7 =
  26. 26.481 × 6 =
  27. 27.532 × 6 =
  28. 28.156 × 7 =
  29. 29.591 × 3 =
  30. 30.185 × 4 =
  31. 31.931 × 6 =
  32. 32.637 × 5 =
  33. 33.191 × 5 =
  34. 34.808 × 7 =
  35. 35.157 × 7 =
  36. 36.951 × 9 =
  37. 37.293 × 8 =
  38. 38.865 × 3 =
  39. 39.959 × 5 =
  40. 40.978 × 8 =

Answer key

  1. 3306
  2. 5285
  3. 1672
  4. 8829
  5. 1062
  6. 4319
  7. 3360
  8. 2331
  9. 7192
  10. 2387
  11. 740
  12. 5976
  13. 4984
  14. 3663
  15. 2694
  16. 4668
  17. 3724
  18. 6006
  19. 6498
  20. 2284
  21. 807
  22. 2586
  23. 1689
  24. 1053
  25. 3234
  26. 2886
  27. 3192
  28. 1092
  29. 1773
  30. 740
  31. 5586
  32. 3185
  33. 955
  34. 5656
  35. 1099
  36. 8559
  37. 2344
  38. 2595
  39. 4795
  40. 7824

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