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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 890 · 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. 1.158 × 4 =
  2. 2.132 × 5 =
  3. 3.278 × 8 =
  4. 4.127 × 3 =
  5. 5.155 × 6 =
  6. 6.928 × 7 =
  7. 7.819 × 3 =
  8. 8.231 × 3 =
  9. 9.908 × 6 =
  10. 10.391 × 5 =
  11. 11.734 × 4 =
  12. 12.281 × 9 =
  13. 13.292 × 7 =
  14. 14.738 × 9 =
  15. 15.813 × 5 =
  16. 16.151 × 4 =
  17. 17.359 × 8 =
  18. 18.325 × 6 =
  19. 19.349 × 6 =
  20. 20.924 × 6 =
  21. 21.115 × 7 =
  22. 22.299 × 5 =
  23. 23.405 × 6 =
  24. 24.941 × 8 =
  25. 25.168 × 7 =
  26. 26.915 × 8 =
  27. 27.414 × 9 =
  28. 28.531 × 3 =
  29. 29.551 × 8 =
  30. 30.433 × 7 =
  31. 31.228 × 8 =
  32. 32.906 × 3 =
  33. 33.983 × 4 =
  34. 34.614 × 3 =
  35. 35.641 × 3 =
  36. 36.568 × 8 =
  37. 37.473 × 9 =
  38. 38.377 × 3 =
  39. 39.388 × 4 =
  40. 40.756 × 4 =

Answer key

  1. 632
  2. 660
  3. 2224
  4. 381
  5. 930
  6. 6496
  7. 2457
  8. 693
  9. 5448
  10. 1955
  11. 2936
  12. 2529
  13. 2044
  14. 6642
  15. 4065
  16. 604
  17. 2872
  18. 1950
  19. 2094
  20. 5544
  21. 805
  22. 1495
  23. 2430
  24. 7528
  25. 1176
  26. 7320
  27. 3726
  28. 1593
  29. 4408
  30. 3031
  31. 1824
  32. 2718
  33. 3932
  34. 1842
  35. 1923
  36. 4544
  37. 4257
  38. 1131
  39. 1552
  40. 3024

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