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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 592 · 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. 1.661 × 5 =
  2. 2.407 × 8 =
  3. 3.651 × 9 =
  4. 4.425 × 8 =
  5. 5.589 × 5 =
  6. 6.414 × 3 =
  7. 7.257 × 4 =
  8. 8.356 × 9 =
  9. 9.369 × 3 =
  10. 10.451 × 7 =
  11. 11.909 × 8 =
  12. 12.338 × 6 =
  13. 13.191 × 9 =
  14. 14.895 × 6 =
  15. 15.179 × 8 =
  16. 16.254 × 7 =
  17. 17.766 × 9 =
  18. 18.357 × 6 =
  19. 19.738 × 9 =
  20. 20.545 × 7 =
  21. 21.544 × 6 =
  22. 22.235 × 5 =
  23. 23.253 × 4 =
  24. 24.388 × 4 =
  25. 25.136 × 9 =
  26. 26.279 × 4 =
  27. 27.585 × 8 =
  28. 28.897 × 9 =
  29. 29.825 × 7 =
  30. 30.902 × 4 =
  31. 31.452 × 8 =
  32. 32.404 × 4 =
  33. 33.495 × 8 =
  34. 34.942 × 3 =
  35. 35.645 × 6 =
  36. 36.171 × 5 =
  37. 37.136 × 4 =
  38. 38.641 × 4 =
  39. 39.176 × 6 =
  40. 40.351 × 7 =

Answer key

  1. 3305
  2. 3256
  3. 5859
  4. 3400
  5. 2945
  6. 1242
  7. 1028
  8. 3204
  9. 1107
  10. 3157
  11. 7272
  12. 2028
  13. 1719
  14. 5370
  15. 1432
  16. 1778
  17. 6894
  18. 2142
  19. 6642
  20. 3815
  21. 3264
  22. 1175
  23. 1012
  24. 1552
  25. 1224
  26. 1116
  27. 4680
  28. 8073
  29. 5775
  30. 3608
  31. 3616
  32. 1616
  33. 3960
  34. 2826
  35. 3870
  36. 855
  37. 544
  38. 2564
  39. 1056
  40. 2457

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