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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 463 · 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. 1.139 × 3 =
  2. 2.377 × 3 =
  3. 3.588 × 5 =
  4. 4.783 × 4 =
  5. 5.893 × 7 =
  6. 6.721 × 3 =
  7. 7.755 × 4 =
  8. 8.865 × 4 =
  9. 9.753 × 5 =
  10. 10.377 × 8 =
  11. 11.511 × 5 =
  12. 12.362 × 4 =
  13. 13.852 × 5 =
  14. 14.168 × 7 =
  15. 15.238 × 7 =
  16. 16.511 × 8 =
  17. 17.671 × 6 =
  18. 18.884 × 7 =
  19. 19.386 × 9 =
  20. 20.985 × 5 =
  21. 21.528 × 6 =
  22. 22.711 × 3 =
  23. 23.954 × 7 =
  24. 24.511 × 9 =
  25. 25.731 × 8 =
  26. 26.248 × 9 =
  27. 27.332 × 3 =
  28. 28.186 × 5 =
  29. 29.475 × 3 =
  30. 30.204 × 8 =
  31. 31.212 × 4 =
  32. 32.309 × 8 =
  33. 33.931 × 4 =
  34. 34.249 × 9 =
  35. 35.668 × 9 =
  36. 36.458 × 4 =
  37. 37.713 × 5 =
  38. 38.598 × 3 =
  39. 39.731 × 4 =
  40. 40.385 × 3 =

Answer key

  1. 417
  2. 1131
  3. 2940
  4. 3132
  5. 6251
  6. 2163
  7. 3020
  8. 3460
  9. 3765
  10. 3016
  11. 2555
  12. 1448
  13. 4260
  14. 1176
  15. 1666
  16. 4088
  17. 4026
  18. 6188
  19. 3474
  20. 4925
  21. 3168
  22. 2133
  23. 6678
  24. 4599
  25. 5848
  26. 2232
  27. 996
  28. 930
  29. 1425
  30. 1632
  31. 848
  32. 2472
  33. 3724
  34. 2241
  35. 6012
  36. 1832
  37. 3565
  38. 1794
  39. 2924
  40. 1155

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