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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 524 · 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. 1.165 × 9 =
  2. 2.181 × 5 =
  3. 3.525 × 7 =
  4. 4.347 × 4 =
  5. 5.609 × 9 =
  6. 6.584 × 6 =
  7. 7.318 × 9 =
  8. 8.489 × 4 =
  9. 9.964 × 9 =
  10. 10.572 × 9 =
  11. 11.614 × 3 =
  12. 12.164 × 6 =
  13. 13.805 × 8 =
  14. 14.584 × 8 =
  15. 15.321 × 3 =
  16. 16.273 × 7 =
  17. 17.118 × 8 =
  18. 18.606 × 9 =
  19. 19.356 × 6 =
  20. 20.188 × 4 =
  21. 21.571 × 7 =
  22. 22.228 × 8 =
  23. 23.906 × 4 =
  24. 24.952 × 5 =
  25. 25.753 × 8 =
  26. 26.935 × 4 =
  27. 27.263 × 7 =
  28. 28.176 × 4 =
  29. 29.822 × 5 =
  30. 30.861 × 6 =
  31. 31.828 × 4 =
  32. 32.253 × 4 =
  33. 33.326 × 9 =
  34. 34.188 × 5 =
  35. 35.124 × 4 =
  36. 36.971 × 7 =
  37. 37.184 × 7 =
  38. 38.953 × 4 =
  39. 39.161 × 5 =
  40. 40.754 × 7 =

Answer key

  1. 1485
  2. 905
  3. 3675
  4. 1388
  5. 5481
  6. 3504
  7. 2862
  8. 1956
  9. 8676
  10. 5148
  11. 1842
  12. 984
  13. 6440
  14. 4672
  15. 963
  16. 1911
  17. 944
  18. 5454
  19. 2136
  20. 752
  21. 3997
  22. 1824
  23. 3624
  24. 4760
  25. 6024
  26. 3740
  27. 1841
  28. 704
  29. 4110
  30. 5166
  31. 3312
  32. 1012
  33. 2934
  34. 940
  35. 496
  36. 6797
  37. 1288
  38. 3812
  39. 805
  40. 5278

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