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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 763 · 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. 1.394 × 4 =
  2. 2.141 × 7 =
  3. 3.444 × 9 =
  4. 4.815 × 7 =
  5. 5.353 × 7 =
  6. 6.891 × 9 =
  7. 7.529 × 6 =
  8. 8.124 × 5 =
  9. 9.418 × 6 =
  10. 10.461 × 8 =
  11. 11.649 × 5 =
  12. 12.438 × 3 =
  13. 13.331 × 8 =
  14. 14.751 × 3 =
  15. 15.514 × 7 =
  16. 16.498 × 4 =
  17. 17.982 × 7 =
  18. 18.937 × 6 =
  19. 19.147 × 9 =
  20. 20.182 × 6 =
  21. 21.657 × 5 =
  22. 22.871 × 4 =
  23. 23.781 × 9 =
  24. 24.346 × 4 =
  25. 25.728 × 3 =
  26. 26.712 × 6 =
  27. 27.555 × 3 =
  28. 28.618 × 5 =
  29. 29.221 × 7 =
  30. 30.541 × 3 =
  31. 31.524 × 3 =
  32. 32.129 × 9 =
  33. 33.811 × 7 =
  34. 34.351 × 9 =
  35. 35.411 × 3 =
  36. 36.318 × 4 =
  37. 37.671 × 9 =
  38. 38.449 × 7 =
  39. 39.879 × 8 =
  40. 40.239 × 5 =

Answer key

  1. 1576
  2. 987
  3. 3996
  4. 5705
  5. 2471
  6. 8019
  7. 3174
  8. 620
  9. 2508
  10. 3688
  11. 3245
  12. 1314
  13. 2648
  14. 2253
  15. 3598
  16. 1992
  17. 6874
  18. 5622
  19. 1323
  20. 1092
  21. 3285
  22. 3484
  23. 7029
  24. 1384
  25. 2184
  26. 4272
  27. 1665
  28. 3090
  29. 1547
  30. 1623
  31. 1572
  32. 1161
  33. 5677
  34. 3159
  35. 1233
  36. 1272
  37. 6039
  38. 3143
  39. 7032
  40. 1195

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