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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 613 · 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. 1.475 × 4 =
  2. 2.186 × 7 =
  3. 3.241 × 3 =
  4. 4.318 × 4 =
  5. 5.711 × 3 =
  6. 6.767 × 8 =
  7. 7.116 × 3 =
  8. 8.577 × 7 =
  9. 9.708 × 3 =
  10. 10.961 × 8 =
  11. 11.567 × 8 =
  12. 12.512 × 8 =
  13. 13.785 × 6 =
  14. 14.674 × 3 =
  15. 15.816 × 4 =
  16. 16.464 × 6 =
  17. 17.511 × 6 =
  18. 18.177 × 4 =
  19. 19.843 × 5 =
  20. 20.659 × 5 =
  21. 21.535 × 6 =
  22. 22.651 × 6 =
  23. 23.563 × 5 =
  24. 24.808 × 9 =
  25. 25.426 × 8 =
  26. 26.834 × 7 =
  27. 27.539 × 7 =
  28. 28.934 × 6 =
  29. 29.365 × 3 =
  30. 30.632 × 7 =
  31. 31.607 × 8 =
  32. 32.745 × 6 =
  33. 33.498 × 3 =
  34. 34.195 × 7 =
  35. 35.364 × 9 =
  36. 36.811 × 5 =
  37. 37.248 × 7 =
  38. 38.797 × 8 =
  39. 39.374 × 8 =
  40. 40.627 × 5 =

Answer key

  1. 1900
  2. 1302
  3. 723
  4. 1272
  5. 2133
  6. 6136
  7. 348
  8. 4039
  9. 2124
  10. 7688
  11. 4536
  12. 4096
  13. 4710
  14. 2022
  15. 3264
  16. 2784
  17. 3066
  18. 708
  19. 4215
  20. 3295
  21. 3210
  22. 3906
  23. 2815
  24. 7272
  25. 3408
  26. 5838
  27. 3773
  28. 5604
  29. 1095
  30. 4424
  31. 4856
  32. 4470
  33. 1494
  34. 1365
  35. 3276
  36. 4055
  37. 1736
  38. 6376
  39. 2992
  40. 3135

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