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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 839 · 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. 1.821 × 5 =
  2. 2.967 × 8 =
  3. 3.173 × 9 =
  4. 4.256 × 8 =
  5. 5.669 × 8 =
  6. 6.868 × 7 =
  7. 7.831 × 6 =
  8. 8.306 × 9 =
  9. 9.145 × 5 =
  10. 10.829 × 9 =
  11. 11.769 × 8 =
  12. 12.639 × 3 =
  13. 13.917 × 3 =
  14. 14.888 × 8 =
  15. 15.574 × 8 =
  16. 16.881 × 3 =
  17. 17.344 × 5 =
  18. 18.296 × 7 =
  19. 19.232 × 6 =
  20. 20.957 × 8 =
  21. 21.789 × 5 =
  22. 22.141 × 8 =
  23. 23.374 × 7 =
  24. 24.609 × 3 =
  25. 25.498 × 4 =
  26. 26.205 × 5 =
  27. 27.535 × 6 =
  28. 28.671 × 6 =
  29. 29.984 × 6 =
  30. 30.377 × 4 =
  31. 31.191 × 8 =
  32. 32.291 × 9 =
  33. 33.309 × 5 =
  34. 34.422 × 8 =
  35. 35.496 × 7 =
  36. 36.161 × 9 =
  37. 37.431 × 5 =
  38. 38.882 × 4 =
  39. 39.266 × 6 =
  40. 40.683 × 5 =

Answer key

  1. 4105
  2. 7736
  3. 1557
  4. 2048
  5. 5352
  6. 6076
  7. 4986
  8. 2754
  9. 725
  10. 7461
  11. 6152
  12. 1917
  13. 2751
  14. 7104
  15. 4592
  16. 2643
  17. 1720
  18. 2072
  19. 1392
  20. 7656
  21. 3945
  22. 1128
  23. 2618
  24. 1827
  25. 1992
  26. 1025
  27. 3210
  28. 4026
  29. 5904
  30. 1508
  31. 1528
  32. 2619
  33. 1545
  34. 3376
  35. 3472
  36. 1449
  37. 2155
  38. 3528
  39. 1596
  40. 3415

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