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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 817 · 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. 1.411 × 3 =
  2. 2.149 × 3 =
  3. 3.453 × 8 =
  4. 4.164 × 3 =
  5. 5.491 × 5 =
  6. 6.549 × 7 =
  7. 7.704 × 8 =
  8. 8.493 × 7 =
  9. 9.202 × 5 =
  10. 10.212 × 6 =
  11. 11.959 × 4 =
  12. 12.554 × 3 =
  13. 13.291 × 9 =
  14. 14.335 × 7 =
  15. 15.735 × 6 =
  16. 16.407 × 9 =
  17. 17.186 × 9 =
  18. 18.143 × 5 =
  19. 19.734 × 8 =
  20. 20.276 × 6 =
  21. 21.792 × 5 =
  22. 22.875 × 4 =
  23. 23.818 × 8 =
  24. 24.671 × 7 =
  25. 25.121 × 5 =
  26. 26.299 × 5 =
  27. 27.241 × 3 =
  28. 28.196 × 7 =
  29. 29.242 × 6 =
  30. 30.219 × 8 =
  31. 31.231 × 8 =
  32. 32.888 × 7 =
  33. 33.824 × 6 =
  34. 34.186 × 6 =
  35. 35.382 × 3 =
  36. 36.586 × 5 =
  37. 37.727 × 4 =
  38. 38.856 × 4 =
  39. 39.888 × 6 =
  40. 40.524 × 4 =

Answer key

  1. 1233
  2. 447
  3. 3624
  4. 492
  5. 2455
  6. 3843
  7. 5632
  8. 3451
  9. 1010
  10. 1272
  11. 3836
  12. 1662
  13. 2619
  14. 2345
  15. 4410
  16. 3663
  17. 1674
  18. 715
  19. 5872
  20. 1656
  21. 3960
  22. 3500
  23. 6544
  24. 4697
  25. 605
  26. 1495
  27. 723
  28. 1372
  29. 1452
  30. 1752
  31. 1848
  32. 6216
  33. 4944
  34. 1116
  35. 1146
  36. 2930
  37. 2908
  38. 3424
  39. 5328
  40. 2096

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