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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 578 · 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. 1.754 × 9 =
  2. 2.662 × 5 =
  3. 3.753 × 3 =
  4. 4.662 × 7 =
  5. 5.181 × 3 =
  6. 6.239 × 3 =
  7. 7.609 × 8 =
  8. 8.751 × 4 =
  9. 9.116 × 6 =
  10. 10.118 × 6 =
  11. 11.393 × 4 =
  12. 12.634 × 9 =
  13. 13.491 × 8 =
  14. 14.797 × 9 =
  15. 15.523 × 8 =
  16. 16.801 × 4 =
  17. 17.682 × 3 =
  18. 18.183 × 5 =
  19. 19.228 × 4 =
  20. 20.593 × 4 =
  21. 21.324 × 5 =
  22. 22.557 × 9 =
  23. 23.619 × 6 =
  24. 24.778 × 4 =
  25. 25.882 × 5 =
  26. 26.605 × 9 =
  27. 27.937 × 9 =
  28. 28.457 × 9 =
  29. 29.381 × 7 =
  30. 30.589 × 9 =
  31. 31.281 × 3 =
  32. 32.456 × 8 =
  33. 33.918 × 3 =
  34. 34.755 × 9 =
  35. 35.709 × 6 =
  36. 36.468 × 3 =
  37. 37.902 × 3 =
  38. 38.725 × 3 =
  39. 39.408 × 6 =
  40. 40.468 × 9 =

Answer key

  1. 6786
  2. 3310
  3. 2259
  4. 4634
  5. 543
  6. 717
  7. 4872
  8. 3004
  9. 696
  10. 708
  11. 1572
  12. 5706
  13. 3928
  14. 7173
  15. 4184
  16. 3204
  17. 2046
  18. 915
  19. 912
  20. 2372
  21. 1620
  22. 5013
  23. 3714
  24. 3112
  25. 4410
  26. 5445
  27. 8433
  28. 4113
  29. 2667
  30. 5301
  31. 843
  32. 3648
  33. 2754
  34. 6795
  35. 4254
  36. 1404
  37. 2706
  38. 2175
  39. 2448
  40. 4212

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