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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 534 · 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. 1.139 × 4 =
  2. 2.497 × 4 =
  3. 3.757 × 4 =
  4. 4.168 × 4 =
  5. 5.299 × 3 =
  6. 6.771 × 8 =
  7. 7.549 × 3 =
  8. 8.546 × 4 =
  9. 9.678 × 8 =
  10. 10.661 × 9 =
  11. 11.609 × 5 =
  12. 12.431 × 3 =
  13. 13.709 × 3 =
  14. 14.337 × 8 =
  15. 15.961 × 6 =
  16. 16.369 × 5 =
  17. 17.729 × 7 =
  18. 18.315 × 5 =
  19. 19.691 × 3 =
  20. 20.679 × 3 =
  21. 21.187 × 4 =
  22. 22.948 × 9 =
  23. 23.358 × 6 =
  24. 24.349 × 9 =
  25. 25.361 × 5 =
  26. 26.821 × 9 =
  27. 27.649 × 4 =
  28. 28.164 × 9 =
  29. 29.426 × 8 =
  30. 30.711 × 3 =
  31. 31.734 × 4 =
  32. 32.934 × 6 =
  33. 33.909 × 4 =
  34. 34.259 × 9 =
  35. 35.191 × 4 =
  36. 36.895 × 8 =
  37. 37.391 × 3 =
  38. 38.425 × 3 =
  39. 39.207 × 4 =
  40. 40.541 × 3 =

Answer key

  1. 556
  2. 1988
  3. 3028
  4. 672
  5. 897
  6. 6168
  7. 1647
  8. 2184
  9. 5424
  10. 5949
  11. 3045
  12. 1293
  13. 2127
  14. 2696
  15. 5766
  16. 1845
  17. 5103
  18. 1575
  19. 2073
  20. 2037
  21. 748
  22. 8532
  23. 2148
  24. 3141
  25. 1805
  26. 7389
  27. 2596
  28. 1476
  29. 3408
  30. 2133
  31. 2936
  32. 5604
  33. 3636
  34. 2331
  35. 764
  36. 7160
  37. 1173
  38. 1275
  39. 828
  40. 1623

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