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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 908 · 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. 1.872 × 7 =
  2. 2.245 × 3 =
  3. 3.941 × 7 =
  4. 4.959 × 5 =
  5. 5.744 × 4 =
  6. 6.307 × 4 =
  7. 7.978 × 6 =
  8. 8.823 × 5 =
  9. 9.214 × 3 =
  10. 10.229 × 4 =
  11. 11.757 × 4 =
  12. 12.519 × 7 =
  13. 13.179 × 4 =
  14. 14.884 × 6 =
  15. 15.536 × 7 =
  16. 16.863 × 4 =
  17. 17.178 × 7 =
  18. 18.514 × 8 =
  19. 19.861 × 9 =
  20. 20.203 × 9 =
  21. 21.925 × 9 =
  22. 22.967 × 6 =
  23. 23.409 × 3 =
  24. 24.209 × 3 =
  25. 25.825 × 8 =
  26. 26.601 × 6 =
  27. 27.891 × 5 =
  28. 28.591 × 7 =
  29. 29.621 × 9 =
  30. 30.291 × 7 =
  31. 31.262 × 4 =
  32. 32.342 × 5 =
  33. 33.611 × 6 =
  34. 34.534 × 7 =
  35. 35.873 × 3 =
  36. 36.313 × 4 =
  37. 37.321 × 8 =
  38. 38.561 × 3 =
  39. 39.308 × 6 =
  40. 40.876 × 5 =

Answer key

  1. 6104
  2. 735
  3. 6587
  4. 4795
  5. 2976
  6. 1228
  7. 5868
  8. 4115
  9. 642
  10. 916
  11. 3028
  12. 3633
  13. 716
  14. 5304
  15. 3752
  16. 3452
  17. 1246
  18. 4112
  19. 7749
  20. 1827
  21. 8325
  22. 5802
  23. 1227
  24. 627
  25. 6600
  26. 3606
  27. 4455
  28. 4137
  29. 5589
  30. 2037
  31. 1048
  32. 1710
  33. 3666
  34. 3738
  35. 2619
  36. 1252
  37. 2568
  38. 1683
  39. 1848
  40. 4380

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