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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 555 · 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. 1.623 × 3 =
  2. 2.385 × 7 =
  3. 3.911 × 8 =
  4. 4.138 × 7 =
  5. 5.985 × 3 =
  6. 6.115 × 6 =
  7. 7.865 × 8 =
  8. 8.312 × 7 =
  9. 9.635 × 7 =
  10. 10.932 × 3 =
  11. 11.775 × 6 =
  12. 12.541 × 5 =
  13. 13.824 × 9 =
  14. 14.333 × 8 =
  15. 15.591 × 6 =
  16. 16.308 × 7 =
  17. 17.877 × 6 =
  18. 18.731 × 3 =
  19. 19.346 × 6 =
  20. 20.126 × 7 =
  21. 21.931 × 5 =
  22. 22.137 × 3 =
  23. 23.624 × 3 =
  24. 24.121 × 8 =
  25. 25.785 × 3 =
  26. 26.277 × 5 =
  27. 27.483 × 4 =
  28. 28.141 × 3 =
  29. 29.285 × 5 =
  30. 30.162 × 6 =
  31. 31.655 × 4 =
  32. 32.461 × 7 =
  33. 33.602 × 6 =
  34. 34.123 × 8 =
  35. 35.947 × 3 =
  36. 36.419 × 5 =
  37. 37.815 × 8 =
  38. 38.155 × 5 =
  39. 39.445 × 8 =
  40. 40.841 × 4 =

Answer key

  1. 1869
  2. 2695
  3. 7288
  4. 966
  5. 2955
  6. 690
  7. 6920
  8. 2184
  9. 4445
  10. 2796
  11. 4650
  12. 2705
  13. 7416
  14. 2664
  15. 3546
  16. 2156
  17. 5262
  18. 2193
  19. 2076
  20. 882
  21. 4655
  22. 411
  23. 1872
  24. 968
  25. 2355
  26. 1385
  27. 1932
  28. 423
  29. 1425
  30. 972
  31. 2620
  32. 3227
  33. 3612
  34. 984
  35. 2841
  36. 2095
  37. 6520
  38. 775
  39. 3560
  40. 3364

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