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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 945 · 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. 1.538 × 8 =
  2. 2.298 × 8 =
  3. 3.922 × 3 =
  4. 4.143 × 8 =
  5. 5.871 × 9 =
  6. 6.767 × 7 =
  7. 7.335 × 3 =
  8. 8.981 × 7 =
  9. 9.225 × 7 =
  10. 10.354 × 3 =
  11. 11.392 × 8 =
  12. 12.734 × 4 =
  13. 13.168 × 4 =
  14. 14.846 × 8 =
  15. 15.956 × 5 =
  16. 16.199 × 5 =
  17. 17.592 × 5 =
  18. 18.574 × 4 =
  19. 19.202 × 5 =
  20. 20.281 × 7 =
  21. 21.258 × 6 =
  22. 22.671 × 6 =
  23. 23.527 × 3 =
  24. 24.448 × 7 =
  25. 25.244 × 4 =
  26. 26.471 × 5 =
  27. 27.917 × 6 =
  28. 28.193 × 3 =
  29. 29.681 × 9 =
  30. 30.291 × 6 =
  31. 31.161 × 6 =
  32. 32.249 × 4 =
  33. 33.521 × 4 =
  34. 34.541 × 3 =
  35. 35.321 × 4 =
  36. 36.535 × 8 =
  37. 37.191 × 7 =
  38. 38.928 × 5 =
  39. 39.327 × 9 =
  40. 40.692 × 8 =

Answer key

  1. 4304
  2. 2384
  3. 2766
  4. 1144
  5. 7839
  6. 5369
  7. 1005
  8. 6867
  9. 1575
  10. 1062
  11. 3136
  12. 2936
  13. 672
  14. 6768
  15. 4780
  16. 995
  17. 2960
  18. 2296
  19. 1010
  20. 1967
  21. 1548
  22. 4026
  23. 1581
  24. 3136
  25. 976
  26. 2355
  27. 5502
  28. 579
  29. 6129
  30. 1746
  31. 966
  32. 996
  33. 2084
  34. 1623
  35. 1284
  36. 4280
  37. 1337
  38. 4640
  39. 2943
  40. 5536

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