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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 423 · 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. 1.444 × 8 =
  2. 2.835 × 7 =
  3. 3.673 × 3 =
  4. 4.129 × 3 =
  5. 5.363 × 3 =
  6. 6.825 × 8 =
  7. 7.115 × 9 =
  8. 8.971 × 9 =
  9. 9.635 × 9 =
  10. 10.813 × 7 =
  11. 11.971 × 5 =
  12. 12.491 × 9 =
  13. 13.712 × 5 =
  14. 14.913 × 7 =
  15. 15.778 × 5 =
  16. 16.206 × 4 =
  17. 17.211 × 3 =
  18. 18.899 × 7 =
  19. 19.818 × 4 =
  20. 20.451 × 8 =
  21. 21.588 × 4 =
  22. 22.631 × 6 =
  23. 23.973 × 3 =
  24. 24.605 × 4 =
  25. 25.804 × 3 =
  26. 26.659 × 7 =
  27. 27.131 × 8 =
  28. 28.408 × 9 =
  29. 29.367 × 9 =
  30. 30.466 × 5 =
  31. 31.113 × 5 =
  32. 32.431 × 5 =
  33. 33.636 × 7 =
  34. 34.648 × 7 =
  35. 35.381 × 6 =
  36. 36.604 × 8 =
  37. 37.402 × 5 =
  38. 38.119 × 4 =
  39. 39.536 × 4 =
  40. 40.328 × 6 =

Answer key

  1. 3552
  2. 5845
  3. 2019
  4. 387
  5. 1089
  6. 6600
  7. 1035
  8. 8739
  9. 5715
  10. 5691
  11. 4855
  12. 4419
  13. 3560
  14. 6391
  15. 3890
  16. 824
  17. 633
  18. 6293
  19. 3272
  20. 3608
  21. 2352
  22. 3786
  23. 2919
  24. 2420
  25. 2412
  26. 4613
  27. 1048
  28. 3672
  29. 3303
  30. 2330
  31. 565
  32. 2155
  33. 4452
  34. 4536
  35. 2286
  36. 4832
  37. 2010
  38. 476
  39. 2144
  40. 1968

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