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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 789 · 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. 1.709 × 3 =
  2. 2.324 × 4 =
  3. 3.288 × 6 =
  4. 4.262 × 4 =
  5. 5.311 × 3 =
  6. 6.139 × 6 =
  7. 7.456 × 3 =
  8. 8.808 × 5 =
  9. 9.224 × 5 =
  10. 10.422 × 3 =
  11. 11.501 × 4 =
  12. 12.163 × 9 =
  13. 13.251 × 4 =
  14. 14.259 × 7 =
  15. 15.856 × 8 =
  16. 16.958 × 5 =
  17. 17.301 × 3 =
  18. 18.547 × 9 =
  19. 19.483 × 8 =
  20. 20.613 × 3 =
  21. 21.635 × 3 =
  22. 22.231 × 5 =
  23. 23.952 × 3 =
  24. 24.821 × 3 =
  25. 25.431 × 7 =
  26. 26.631 × 7 =
  27. 27.515 × 8 =
  28. 28.251 × 9 =
  29. 29.571 × 3 =
  30. 30.161 × 5 =
  31. 31.247 × 8 =
  32. 32.426 × 5 =
  33. 33.718 × 3 =
  34. 34.513 × 3 =
  35. 35.414 × 3 =
  36. 36.231 × 4 =
  37. 37.209 × 6 =
  38. 38.921 × 3 =
  39. 39.711 × 3 =
  40. 40.116 × 8 =

Answer key

  1. 2127
  2. 1296
  3. 1728
  4. 1048
  5. 933
  6. 834
  7. 1368
  8. 4040
  9. 1120
  10. 1266
  11. 2004
  12. 1467
  13. 1004
  14. 1813
  15. 6848
  16. 4790
  17. 903
  18. 4923
  19. 3864
  20. 1839
  21. 1905
  22. 1155
  23. 2856
  24. 2463
  25. 3017
  26. 4417
  27. 4120
  28. 2259
  29. 1713
  30. 805
  31. 1976
  32. 2130
  33. 2154
  34. 1539
  35. 1242
  36. 924
  37. 1254
  38. 2763
  39. 2133
  40. 928

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