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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 921 · 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. 1.537 × 5 =
  2. 2.595 × 6 =
  3. 3.499 × 6 =
  4. 4.808 × 9 =
  5. 5.329 × 8 =
  6. 6.815 × 4 =
  7. 7.203 × 5 =
  8. 8.534 × 6 =
  9. 9.632 × 8 =
  10. 10.981 × 6 =
  11. 11.485 × 8 =
  12. 12.182 × 7 =
  13. 13.336 × 5 =
  14. 14.113 × 6 =
  15. 15.809 × 3 =
  16. 16.862 × 6 =
  17. 17.299 × 8 =
  18. 18.967 × 4 =
  19. 19.466 × 3 =
  20. 20.274 × 4 =
  21. 21.958 × 6 =
  22. 22.882 × 4 =
  23. 23.916 × 4 =
  24. 24.412 × 4 =
  25. 25.937 × 5 =
  26. 26.766 × 3 =
  27. 27.596 × 4 =
  28. 28.869 × 4 =
  29. 29.331 × 3 =
  30. 30.844 × 5 =
  31. 31.741 × 3 =
  32. 32.322 × 9 =
  33. 33.276 × 7 =
  34. 34.675 × 4 =
  35. 35.614 × 3 =
  36. 36.591 × 5 =
  37. 37.938 × 6 =
  38. 38.346 × 3 =
  39. 39.587 × 9 =
  40. 40.479 × 8 =

Answer key

  1. 2685
  2. 3570
  3. 2994
  4. 7272
  5. 2632
  6. 3260
  7. 1015
  8. 3204
  9. 5056
  10. 5886
  11. 3880
  12. 1274
  13. 1680
  14. 678
  15. 2427
  16. 5172
  17. 2392
  18. 3868
  19. 1398
  20. 1096
  21. 5748
  22. 3528
  23. 3664
  24. 1648
  25. 4685
  26. 2298
  27. 2384
  28. 3476
  29. 993
  30. 4220
  31. 2223
  32. 2898
  33. 1932
  34. 2700
  35. 1842
  36. 2955
  37. 5628
  38. 1038
  39. 5283
  40. 3832

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