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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 473 · 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. 1.446 × 8 =
  2. 2.533 × 3 =
  3. 3.693 × 8 =
  4. 4.939 × 9 =
  5. 5.445 × 3 =
  6. 6.521 × 3 =
  7. 7.974 × 8 =
  8. 8.164 × 3 =
  9. 9.597 × 6 =
  10. 10.938 × 9 =
  11. 11.487 × 5 =
  12. 12.265 × 7 =
  13. 13.513 × 8 =
  14. 14.362 × 3 =
  15. 15.468 × 3 =
  16. 16.938 × 5 =
  17. 17.115 × 4 =
  18. 18.389 × 7 =
  19. 19.697 × 6 =
  20. 20.981 × 3 =
  21. 21.116 × 7 =
  22. 22.366 × 9 =
  23. 23.606 × 6 =
  24. 24.605 × 7 =
  25. 25.681 × 5 =
  26. 26.543 × 3 =
  27. 27.422 × 4 =
  28. 28.257 × 3 =
  29. 29.208 × 4 =
  30. 30.128 × 6 =
  31. 31.673 × 6 =
  32. 32.551 × 6 =
  33. 33.227 × 4 =
  34. 34.537 × 4 =
  35. 35.804 × 9 =
  36. 36.368 × 3 =
  37. 37.815 × 5 =
  38. 38.416 × 8 =
  39. 39.857 × 4 =
  40. 40.303 × 3 =

Answer key

  1. 3568
  2. 1599
  3. 5544
  4. 8451
  5. 1335
  6. 1563
  7. 7792
  8. 492
  9. 3582
  10. 8442
  11. 2435
  12. 1855
  13. 4104
  14. 1086
  15. 1404
  16. 4690
  17. 460
  18. 2723
  19. 4182
  20. 2943
  21. 812
  22. 3294
  23. 3636
  24. 4235
  25. 3405
  26. 1629
  27. 1688
  28. 771
  29. 832
  30. 768
  31. 4038
  32. 3306
  33. 908
  34. 2148
  35. 7236
  36. 1104
  37. 4075
  38. 3328
  39. 3428
  40. 909

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