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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 742 · 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. 1.691 × 4 =
  2. 2.196 × 7 =
  3. 3.376 × 9 =
  4. 4.699 × 8 =
  5. 5.824 × 9 =
  6. 6.921 × 3 =
  7. 7.972 × 4 =
  8. 8.163 × 7 =
  9. 9.488 × 7 =
  10. 10.511 × 9 =
  11. 11.709 × 7 =
  12. 12.127 × 4 =
  13. 13.152 × 8 =
  14. 14.181 × 3 =
  15. 15.381 × 9 =
  16. 16.846 × 7 =
  17. 17.389 × 9 =
  18. 18.626 × 9 =
  19. 19.764 × 7 =
  20. 20.571 × 7 =
  21. 21.371 × 8 =
  22. 22.242 × 7 =
  23. 23.434 × 4 =
  24. 24.259 × 3 =
  25. 25.862 × 4 =
  26. 26.255 × 9 =
  27. 27.496 × 9 =
  28. 28.798 × 5 =
  29. 29.602 × 9 =
  30. 30.728 × 9 =
  31. 31.446 × 3 =
  32. 32.885 × 8 =
  33. 33.366 × 4 =
  34. 34.649 × 6 =
  35. 35.294 × 5 =
  36. 36.171 × 3 =
  37. 37.357 × 9 =
  38. 38.907 × 5 =
  39. 39.751 × 9 =
  40. 40.424 × 5 =

Answer key

  1. 2764
  2. 1372
  3. 3384
  4. 5592
  5. 7416
  6. 2763
  7. 3888
  8. 1141
  9. 3416
  10. 4599
  11. 4963
  12. 508
  13. 1216
  14. 543
  15. 3429
  16. 5922
  17. 3501
  18. 5634
  19. 5348
  20. 3997
  21. 2968
  22. 1694
  23. 1736
  24. 777
  25. 3448
  26. 2295
  27. 4464
  28. 3990
  29. 5418
  30. 6552
  31. 1338
  32. 7080
  33. 1464
  34. 3894
  35. 1470
  36. 513
  37. 3213
  38. 4535
  39. 6759
  40. 2120

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