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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 459 · 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. 1.617 × 9 =
  2. 2.261 × 4 =
  3. 3.138 × 7 =
  4. 4.441 × 3 =
  5. 5.132 × 9 =
  6. 6.876 × 3 =
  7. 7.762 × 4 =
  8. 8.543 × 9 =
  9. 9.592 × 6 =
  10. 10.522 × 3 =
  11. 11.437 × 9 =
  12. 12.716 × 7 =
  13. 13.639 × 7 =
  14. 14.507 × 6 =
  15. 15.378 × 5 =
  16. 16.633 × 5 =
  17. 17.255 × 6 =
  18. 18.166 × 4 =
  19. 19.315 × 8 =
  20. 20.168 × 8 =
  21. 21.351 × 6 =
  22. 22.154 × 9 =
  23. 23.597 × 4 =
  24. 24.639 × 6 =
  25. 25.465 × 8 =
  26. 26.121 × 5 =
  27. 27.344 × 3 =
  28. 28.473 × 9 =
  29. 29.989 × 9 =
  30. 30.791 × 5 =
  31. 31.307 × 9 =
  32. 32.652 × 3 =
  33. 33.599 × 6 =
  34. 34.409 × 8 =
  35. 35.421 × 8 =
  36. 36.723 × 7 =
  37. 37.972 × 4 =
  38. 38.234 × 3 =
  39. 39.805 × 4 =
  40. 40.245 × 7 =

Answer key

  1. 5553
  2. 1044
  3. 966
  4. 1323
  5. 1188
  6. 2628
  7. 3048
  8. 4887
  9. 3552
  10. 1566
  11. 3933
  12. 5012
  13. 4473
  14. 3042
  15. 1890
  16. 3165
  17. 1530
  18. 664
  19. 2520
  20. 1344
  21. 2106
  22. 1386
  23. 2388
  24. 3834
  25. 3720
  26. 605
  27. 1032
  28. 4257
  29. 8901
  30. 3955
  31. 2763
  32. 1956
  33. 3594
  34. 3272
  35. 3368
  36. 5061
  37. 3888
  38. 702
  39. 3220
  40. 1715

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