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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 591 · 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. 1.532 × 7 =
  2. 2.268 × 3 =
  3. 3.384 × 7 =
  4. 4.393 × 5 =
  5. 5.284 × 6 =
  6. 6.628 × 8 =
  7. 7.416 × 7 =
  8. 8.617 × 3 =
  9. 9.761 × 8 =
  10. 10.435 × 4 =
  11. 11.817 × 6 =
  12. 12.771 × 4 =
  13. 13.392 × 8 =
  14. 14.974 × 9 =
  15. 15.984 × 5 =
  16. 16.916 × 9 =
  17. 17.178 × 8 =
  18. 18.951 × 3 =
  19. 19.987 × 3 =
  20. 20.603 × 7 =
  21. 21.699 × 8 =
  22. 22.231 × 4 =
  23. 23.149 × 4 =
  24. 24.354 × 4 =
  25. 25.202 × 8 =
  26. 26.775 × 5 =
  27. 27.648 × 5 =
  28. 28.788 × 7 =
  29. 29.745 × 3 =
  30. 30.382 × 9 =
  31. 31.812 × 8 =
  32. 32.731 × 3 =
  33. 33.755 × 9 =
  34. 34.487 × 4 =
  35. 35.419 × 7 =
  36. 36.215 × 5 =
  37. 37.676 × 3 =
  38. 38.118 × 5 =
  39. 39.628 × 6 =
  40. 40.854 × 9 =

Answer key

  1. 3724
  2. 804
  3. 2688
  4. 1965
  5. 1704
  6. 5024
  7. 2912
  8. 1851
  9. 6088
  10. 1740
  11. 4902
  12. 3084
  13. 3136
  14. 8766
  15. 4920
  16. 8244
  17. 1424
  18. 2853
  19. 2961
  20. 4221
  21. 5592
  22. 924
  23. 596
  24. 1416
  25. 1616
  26. 3875
  27. 3240
  28. 5516
  29. 2235
  30. 3438
  31. 6496
  32. 2193
  33. 6795
  34. 1948
  35. 2933
  36. 1075
  37. 2028
  38. 590
  39. 3768
  40. 7686

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