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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 410 · 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. 1.471 × 7 =
  2. 2.446 × 4 =
  3. 3.839 × 6 =
  4. 4.601 × 4 =
  5. 5.524 × 9 =
  6. 6.269 × 3 =
  7. 7.285 × 7 =
  8. 8.499 × 7 =
  9. 9.664 × 6 =
  10. 10.301 × 7 =
  11. 11.211 × 5 =
  12. 12.962 × 4 =
  13. 13.292 × 6 =
  14. 14.597 × 9 =
  15. 15.654 × 4 =
  16. 16.656 × 6 =
  17. 17.752 × 6 =
  18. 18.613 × 4 =
  19. 19.444 × 9 =
  20. 20.651 × 7 =
  21. 21.461 × 7 =
  22. 22.771 × 5 =
  23. 23.251 × 4 =
  24. 24.901 × 3 =
  25. 25.216 × 8 =
  26. 26.282 × 3 =
  27. 27.887 × 6 =
  28. 28.977 × 8 =
  29. 29.679 × 9 =
  30. 30.202 × 7 =
  31. 31.662 × 6 =
  32. 32.318 × 9 =
  33. 33.357 × 5 =
  34. 34.359 × 4 =
  35. 35.883 × 5 =
  36. 36.294 × 8 =
  37. 37.509 × 3 =
  38. 38.211 × 4 =
  39. 39.637 × 3 =
  40. 40.139 × 9 =

Answer key

  1. 3297
  2. 1784
  3. 5034
  4. 2404
  5. 4716
  6. 807
  7. 1995
  8. 3493
  9. 3984
  10. 2107
  11. 1055
  12. 3848
  13. 1752
  14. 5373
  15. 2616
  16. 3936
  17. 4512
  18. 2452
  19. 3996
  20. 4557
  21. 3227
  22. 3855
  23. 1004
  24. 2703
  25. 1728
  26. 846
  27. 5322
  28. 7816
  29. 6111
  30. 1414
  31. 3972
  32. 2862
  33. 1785
  34. 1436
  35. 4415
  36. 2352
  37. 1527
  38. 844
  39. 1911
  40. 1251

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