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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 384 · 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. 1.333 × 5 =
  2. 2.402 × 3 =
  3. 3.161 × 4 =
  4. 4.166 × 5 =
  5. 5.702 × 8 =
  6. 6.749 × 3 =
  7. 7.643 × 7 =
  8. 8.588 × 6 =
  9. 9.773 × 4 =
  10. 10.247 × 5 =
  11. 11.981 × 3 =
  12. 12.389 × 7 =
  13. 13.315 × 9 =
  14. 14.115 × 9 =
  15. 15.606 × 4 =
  16. 16.793 × 4 =
  17. 17.712 × 5 =
  18. 18.605 × 6 =
  19. 19.296 × 4 =
  20. 20.762 × 8 =
  21. 21.961 × 4 =
  22. 22.709 × 7 =
  23. 23.148 × 7 =
  24. 24.344 × 9 =
  25. 25.381 × 4 =
  26. 26.223 × 6 =
  27. 27.366 × 5 =
  28. 28.146 × 5 =
  29. 29.235 × 3 =
  30. 30.246 × 4 =
  31. 31.759 × 8 =
  32. 32.957 × 3 =
  33. 33.971 × 8 =
  34. 34.583 × 9 =
  35. 35.848 × 9 =
  36. 36.883 × 8 =
  37. 37.877 × 5 =
  38. 38.923 × 6 =
  39. 39.667 × 7 =
  40. 40.877 × 3 =

Answer key

  1. 1665
  2. 1206
  3. 644
  4. 830
  5. 5616
  6. 2247
  7. 4501
  8. 3528
  9. 3092
  10. 1235
  11. 2943
  12. 2723
  13. 2835
  14. 1035
  15. 2424
  16. 3172
  17. 3560
  18. 3630
  19. 1184
  20. 6096
  21. 3844
  22. 4963
  23. 1036
  24. 3096
  25. 1524
  26. 1338
  27. 1830
  28. 730
  29. 705
  30. 984
  31. 6072
  32. 2871
  33. 7768
  34. 5247
  35. 7632
  36. 7064
  37. 4385
  38. 5538
  39. 4669
  40. 2631

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