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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 145 · 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. 1.664 × 7 =
  2. 2.928 × 7 =
  3. 3.689 × 5 =
  4. 4.516 × 8 =
  5. 5.626 × 7 =
  6. 6.251 × 3 =
  7. 7.756 × 9 =
  8. 8.622 × 6 =
  9. 9.951 × 6 =
  10. 10.438 × 3 =
  11. 11.287 × 6 =
  12. 12.726 × 4 =
  13. 13.491 × 5 =
  14. 14.497 × 8 =
  15. 15.452 × 8 =
  16. 16.181 × 7 =
  17. 17.273 × 7 =
  18. 18.928 × 5 =
  19. 19.735 × 9 =
  20. 20.954 × 9 =
  21. 21.713 × 3 =
  22. 22.707 × 4 =
  23. 23.898 × 6 =
  24. 24.648 × 8 =
  25. 25.361 × 4 =
  26. 26.499 × 4 =
  27. 27.127 × 5 =
  28. 28.136 × 3 =
  29. 29.137 × 6 =
  30. 30.156 × 3 =
  31. 31.628 × 6 =
  32. 32.299 × 4 =
  33. 33.954 × 4 =
  34. 34.821 × 8 =
  35. 35.661 × 9 =
  36. 36.408 × 4 =
  37. 37.553 × 3 =
  38. 38.129 × 4 =
  39. 39.777 × 7 =
  40. 40.369 × 7 =

Answer key

  1. 4648
  2. 6496
  3. 3445
  4. 4128
  5. 4382
  6. 753
  7. 6804
  8. 3732
  9. 5706
  10. 1314
  11. 1722
  12. 2904
  13. 2455
  14. 3976
  15. 3616
  16. 1267
  17. 1911
  18. 4640
  19. 6615
  20. 8586
  21. 2139
  22. 2828
  23. 5388
  24. 5184
  25. 1444
  26. 1996
  27. 635
  28. 408
  29. 822
  30. 468
  31. 3768
  32. 1196
  33. 3816
  34. 6568
  35. 5949
  36. 1632
  37. 1659
  38. 516
  39. 5439
  40. 2583

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