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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 834 · 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. 1.316 × 9 =
  2. 2.987 × 4 =
  3. 3.256 × 4 =
  4. 4.744 × 4 =
  5. 5.741 × 4 =
  6. 6.622 × 3 =
  7. 7.241 × 4 =
  8. 8.133 × 5 =
  9. 9.787 × 9 =
  10. 10.731 × 9 =
  11. 11.113 × 7 =
  12. 12.659 × 9 =
  13. 13.672 × 5 =
  14. 14.244 × 4 =
  15. 15.966 × 4 =
  16. 16.828 × 6 =
  17. 17.473 × 4 =
  18. 18.648 × 5 =
  19. 19.681 × 5 =
  20. 20.881 × 8 =
  21. 21.827 × 8 =
  22. 22.272 × 6 =
  23. 23.367 × 4 =
  24. 24.819 × 8 =
  25. 25.879 × 3 =
  26. 26.847 × 7 =
  27. 27.169 × 4 =
  28. 28.361 × 3 =
  29. 29.825 × 8 =
  30. 30.141 × 6 =
  31. 31.276 × 7 =
  32. 32.353 × 5 =
  33. 33.224 × 7 =
  34. 34.745 × 9 =
  35. 35.125 × 6 =
  36. 36.309 × 3 =
  37. 37.873 × 5 =
  38. 38.789 × 9 =
  39. 39.209 × 3 =
  40. 40.342 × 5 =

Answer key

  1. 2844
  2. 3948
  3. 1024
  4. 2976
  5. 2964
  6. 1866
  7. 964
  8. 665
  9. 7083
  10. 6579
  11. 791
  12. 5931
  13. 3360
  14. 976
  15. 3864
  16. 4968
  17. 1892
  18. 3240
  19. 3405
  20. 7048
  21. 6616
  22. 1632
  23. 1468
  24. 6552
  25. 2637
  26. 5929
  27. 676
  28. 1083
  29. 6600
  30. 846
  31. 1932
  32. 1765
  33. 1568
  34. 6705
  35. 750
  36. 927
  37. 4365
  38. 7101
  39. 627
  40. 1710

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