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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 5 · 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. 1.134 × 4 =
  2. 2.714 × 6 =
  3. 3.971 × 6 =
  4. 4.504 × 9 =
  5. 5.243 × 8 =
  6. 6.298 × 3 =
  7. 7.405 × 6 =
  8. 8.563 × 4 =
  9. 9.638 × 3 =
  10. 10.564 × 5 =
  11. 11.356 × 9 =
  12. 12.112 × 6 =
  13. 13.718 × 6 =
  14. 14.171 × 7 =
  15. 15.292 × 8 =
  16. 16.494 × 3 =
  17. 17.631 × 9 =
  18. 18.132 × 6 =
  19. 19.261 × 5 =
  20. 20.164 × 6 =
  21. 21.201 × 6 =
  22. 22.404 × 6 =
  23. 23.356 × 3 =
  24. 24.803 × 9 =
  25. 25.511 × 5 =
  26. 26.703 × 6 =
  27. 27.864 × 8 =
  28. 28.499 × 8 =
  29. 29.614 × 8 =
  30. 30.136 × 4 =
  31. 31.393 × 8 =
  32. 32.689 × 3 =
  33. 33.538 × 3 =
  34. 34.969 × 6 =
  35. 35.451 × 8 =
  36. 36.804 × 7 =
  37. 37.601 × 6 =
  38. 38.265 × 3 =
  39. 39.747 × 3 =
  40. 40.771 × 3 =

Answer key

  1. 536
  2. 4284
  3. 5826
  4. 4536
  5. 1944
  6. 894
  7. 2430
  8. 2252
  9. 1914
  10. 2820
  11. 3204
  12. 672
  13. 4308
  14. 1197
  15. 2336
  16. 1482
  17. 5679
  18. 792
  19. 1305
  20. 984
  21. 1206
  22. 2424
  23. 1068
  24. 7227
  25. 2555
  26. 4218
  27. 6912
  28. 3992
  29. 4912
  30. 544
  31. 3144
  32. 2067
  33. 1614
  34. 5814
  35. 3608
  36. 5628
  37. 3606
  38. 795
  39. 2241
  40. 2313

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