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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 771 · 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. 1.631 × 7 =
  2. 2.673 × 4 =
  3. 3.508 × 4 =
  4. 4.347 × 8 =
  5. 5.117 × 9 =
  6. 6.122 × 7 =
  7. 7.469 × 6 =
  8. 8.303 × 6 =
  9. 9.185 × 3 =
  10. 10.653 × 6 =
  11. 11.902 × 7 =
  12. 12.342 × 3 =
  13. 13.534 × 5 =
  14. 14.301 × 6 =
  15. 15.353 × 6 =
  16. 16.297 × 4 =
  17. 17.364 × 4 =
  18. 18.792 × 9 =
  19. 19.223 × 9 =
  20. 20.541 × 4 =
  21. 21.983 × 6 =
  22. 22.143 × 6 =
  23. 23.132 × 4 =
  24. 24.503 × 4 =
  25. 25.726 × 8 =
  26. 26.125 × 3 =
  27. 27.624 × 5 =
  28. 28.295 × 7 =
  29. 29.591 × 9 =
  30. 30.677 × 3 =
  31. 31.583 × 3 =
  32. 32.835 × 4 =
  33. 33.445 × 3 =
  34. 34.241 × 3 =
  35. 35.311 × 9 =
  36. 36.827 × 4 =
  37. 37.654 × 9 =
  38. 38.333 × 8 =
  39. 39.168 × 4 =
  40. 40.403 × 3 =

Answer key

  1. 4417
  2. 2692
  3. 2032
  4. 2776
  5. 1053
  6. 854
  7. 2814
  8. 1818
  9. 555
  10. 3918
  11. 6314
  12. 1026
  13. 2670
  14. 1806
  15. 2118
  16. 1188
  17. 1456
  18. 7128
  19. 2007
  20. 2164
  21. 5898
  22. 858
  23. 528
  24. 2012
  25. 5808
  26. 375
  27. 3120
  28. 2065
  29. 5319
  30. 2031
  31. 1749
  32. 3340
  33. 1335
  34. 723
  35. 2799
  36. 3308
  37. 5886
  38. 2664
  39. 672
  40. 1209

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