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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 51 · 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. 1.337 × 8 =
  2. 2.271 × 8 =
  3. 3.762 × 7 =
  4. 4.391 × 8 =
  5. 5.411 × 5 =
  6. 6.747 × 4 =
  7. 7.451 × 3 =
  8. 8.169 × 4 =
  9. 9.966 × 3 =
  10. 10.141 × 8 =
  11. 11.292 × 9 =
  12. 12.141 × 9 =
  13. 13.698 × 7 =
  14. 14.889 × 5 =
  15. 15.632 × 6 =
  16. 16.823 × 4 =
  17. 17.561 × 3 =
  18. 18.514 × 3 =
  19. 19.488 × 8 =
  20. 20.848 × 5 =
  21. 21.842 × 3 =
  22. 22.953 × 6 =
  23. 23.618 × 4 =
  24. 24.462 × 4 =
  25. 25.509 × 8 =
  26. 26.818 × 5 =
  27. 27.697 × 3 =
  28. 28.307 × 5 =
  29. 29.546 × 4 =
  30. 30.176 × 9 =
  31. 31.771 × 5 =
  32. 32.409 × 6 =
  33. 33.681 × 5 =
  34. 34.624 × 4 =
  35. 35.786 × 7 =
  36. 36.344 × 8 =
  37. 37.946 × 4 =
  38. 38.811 × 6 =
  39. 39.334 × 4 =
  40. 40.117 × 4 =

Answer key

  1. 2696
  2. 2168
  3. 5334
  4. 3128
  5. 2055
  6. 2988
  7. 1353
  8. 676
  9. 2898
  10. 1128
  11. 2628
  12. 1269
  13. 4886
  14. 4445
  15. 3792
  16. 3292
  17. 1683
  18. 1542
  19. 3904
  20. 4240
  21. 2526
  22. 5718
  23. 2472
  24. 1848
  25. 4072
  26. 4090
  27. 2091
  28. 1535
  29. 2184
  30. 1584
  31. 3855
  32. 2454
  33. 3405
  34. 2496
  35. 5502
  36. 2752
  37. 3784
  38. 4866
  39. 1336
  40. 468

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