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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 758 · 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. 1.422 × 9 =
  2. 2.248 × 3 =
  3. 3.176 × 8 =
  4. 4.509 × 5 =
  5. 5.401 × 5 =
  6. 6.621 × 8 =
  7. 7.496 × 3 =
  8. 8.212 × 9 =
  9. 9.682 × 4 =
  10. 10.915 × 3 =
  11. 11.828 × 4 =
  12. 12.598 × 3 =
  13. 13.688 × 3 =
  14. 14.821 × 3 =
  15. 15.853 × 8 =
  16. 16.332 × 5 =
  17. 17.294 × 4 =
  18. 18.537 × 7 =
  19. 19.834 × 7 =
  20. 20.981 × 5 =
  21. 21.325 × 8 =
  22. 22.755 × 4 =
  23. 23.716 × 3 =
  24. 24.201 × 3 =
  25. 25.335 × 4 =
  26. 26.492 × 7 =
  27. 27.121 × 6 =
  28. 28.741 × 7 =
  29. 29.364 × 4 =
  30. 30.187 × 3 =
  31. 31.597 × 3 =
  32. 32.236 × 3 =
  33. 33.425 × 3 =
  34. 34.356 × 3 =
  35. 35.512 × 9 =
  36. 36.792 × 5 =
  37. 37.274 × 3 =
  38. 38.546 × 9 =
  39. 39.134 × 7 =
  40. 40.257 × 6 =

Answer key

  1. 3798
  2. 744
  3. 1408
  4. 2545
  5. 2005
  6. 4968
  7. 1488
  8. 1908
  9. 2728
  10. 2745
  11. 3312
  12. 1794
  13. 2064
  14. 2463
  15. 6824
  16. 1660
  17. 1176
  18. 3759
  19. 5838
  20. 4905
  21. 2600
  22. 3020
  23. 2148
  24. 603
  25. 1340
  26. 3444
  27. 726
  28. 5187
  29. 1456
  30. 561
  31. 1791
  32. 708
  33. 1275
  34. 1068
  35. 4608
  36. 3960
  37. 822
  38. 4914
  39. 938
  40. 1542

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