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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 418 · 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 × 4 =
  2. 2.826 × 7 =
  3. 3.674 × 9 =
  4. 4.211 × 7 =
  5. 5.733 × 8 =
  6. 6.928 × 6 =
  7. 7.174 × 3 =
  8. 8.439 × 5 =
  9. 9.749 × 7 =
  10. 10.118 × 9 =
  11. 11.888 × 3 =
  12. 12.299 × 8 =
  13. 13.172 × 9 =
  14. 14.266 × 5 =
  15. 15.114 × 7 =
  16. 16.711 × 3 =
  17. 17.201 × 7 =
  18. 18.135 × 8 =
  19. 19.278 × 7 =
  20. 20.603 × 6 =
  21. 21.351 × 6 =
  22. 22.838 × 6 =
  23. 23.337 × 5 =
  24. 24.189 × 8 =
  25. 25.121 × 4 =
  26. 26.517 × 7 =
  27. 27.752 × 5 =
  28. 28.974 × 4 =
  29. 29.193 × 9 =
  30. 30.865 × 8 =
  31. 31.208 × 3 =
  32. 32.327 × 4 =
  33. 33.157 × 3 =
  34. 34.505 × 3 =
  35. 35.375 × 7 =
  36. 36.806 × 5 =
  37. 37.262 × 9 =
  38. 38.349 × 6 =
  39. 39.919 × 7 =
  40. 40.423 × 3 =

Answer key

  1. 1540
  2. 5782
  3. 6066
  4. 1477
  5. 5864
  6. 5568
  7. 522
  8. 2195
  9. 5243
  10. 1062
  11. 2664
  12. 2392
  13. 1548
  14. 1330
  15. 798
  16. 2133
  17. 1407
  18. 1080
  19. 1946
  20. 3618
  21. 2106
  22. 5028
  23. 1685
  24. 1512
  25. 484
  26. 3619
  27. 3760
  28. 3896
  29. 1737
  30. 6920
  31. 624
  32. 1308
  33. 471
  34. 1515
  35. 2625
  36. 4030
  37. 2358
  38. 2094
  39. 6433
  40. 1269

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