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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 131 · 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. 1.483 × 6 =
  2. 2.495 × 4 =
  3. 3.473 × 8 =
  4. 4.752 × 3 =
  5. 5.966 × 4 =
  6. 6.121 × 9 =
  7. 7.674 × 7 =
  8. 8.635 × 9 =
  9. 9.586 × 9 =
  10. 10.395 × 4 =
  11. 11.797 × 7 =
  12. 12.625 × 6 =
  13. 13.617 × 9 =
  14. 14.329 × 3 =
  15. 15.701 × 4 =
  16. 16.428 × 5 =
  17. 17.486 × 7 =
  18. 18.501 × 8 =
  19. 19.919 × 3 =
  20. 20.509 × 7 =
  21. 21.435 × 4 =
  22. 22.125 × 6 =
  23. 23.382 × 5 =
  24. 24.881 × 4 =
  25. 25.533 × 7 =
  26. 26.813 × 5 =
  27. 27.959 × 6 =
  28. 28.589 × 4 =
  29. 29.694 × 4 =
  30. 30.153 × 6 =
  31. 31.663 × 4 =
  32. 32.733 × 8 =
  33. 33.431 × 6 =
  34. 34.357 × 5 =
  35. 35.388 × 3 =
  36. 36.677 × 7 =
  37. 37.305 × 8 =
  38. 38.855 × 3 =
  39. 39.374 × 5 =
  40. 40.317 × 3 =

Answer key

  1. 2898
  2. 1980
  3. 3784
  4. 2256
  5. 3864
  6. 1089
  7. 4718
  8. 5715
  9. 5274
  10. 1580
  11. 5579
  12. 3750
  13. 5553
  14. 987
  15. 2804
  16. 2140
  17. 3402
  18. 4008
  19. 2757
  20. 3563
  21. 1740
  22. 750
  23. 1910
  24. 3524
  25. 3731
  26. 4065
  27. 5754
  28. 2356
  29. 2776
  30. 918
  31. 2652
  32. 5864
  33. 2586
  34. 1785
  35. 1164
  36. 4739
  37. 2440
  38. 2565
  39. 1870
  40. 951

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