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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 803 · 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. 1.385 × 5 =
  2. 2.751 × 4 =
  3. 3.892 × 6 =
  4. 4.154 × 5 =
  5. 5.508 × 9 =
  6. 6.497 × 6 =
  7. 7.253 × 3 =
  8. 8.451 × 3 =
  9. 9.735 × 7 =
  10. 10.588 × 4 =
  11. 11.741 × 8 =
  12. 12.299 × 7 =
  13. 13.671 × 3 =
  14. 14.737 × 3 =
  15. 15.873 × 3 =
  16. 16.251 × 4 =
  17. 17.727 × 5 =
  18. 18.287 × 5 =
  19. 19.366 × 4 =
  20. 20.495 × 4 =
  21. 21.597 × 3 =
  22. 22.276 × 3 =
  23. 23.747 × 3 =
  24. 24.368 × 3 =
  25. 25.767 × 7 =
  26. 26.787 × 3 =
  27. 27.307 × 3 =
  28. 28.243 × 4 =
  29. 29.671 × 8 =
  30. 30.482 × 3 =
  31. 31.348 × 8 =
  32. 32.345 × 8 =
  33. 33.441 × 8 =
  34. 34.989 × 4 =
  35. 35.968 × 4 =
  36. 36.176 × 8 =
  37. 37.681 × 5 =
  38. 38.618 × 8 =
  39. 39.117 × 8 =
  40. 40.332 × 9 =

Answer key

  1. 1925
  2. 3004
  3. 5352
  4. 770
  5. 4572
  6. 2982
  7. 759
  8. 1353
  9. 5145
  10. 2352
  11. 5928
  12. 2093
  13. 2013
  14. 2211
  15. 2619
  16. 1004
  17. 3635
  18. 1435
  19. 1464
  20. 1980
  21. 1791
  22. 828
  23. 2241
  24. 1104
  25. 5369
  26. 2361
  27. 921
  28. 972
  29. 5368
  30. 1446
  31. 2784
  32. 2760
  33. 3528
  34. 3956
  35. 3872
  36. 1408
  37. 3405
  38. 4944
  39. 936
  40. 2988

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