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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 61 · 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. 1.201 × 7 =
  2. 2.233 × 9 =
  3. 3.974 × 7 =
  4. 4.881 × 3 =
  5. 5.321 × 3 =
  6. 6.931 × 5 =
  7. 7.407 × 9 =
  8. 8.768 × 7 =
  9. 9.228 × 9 =
  10. 10.681 × 5 =
  11. 11.661 × 3 =
  12. 12.359 × 5 =
  13. 13.713 × 4 =
  14. 14.823 × 5 =
  15. 15.214 × 6 =
  16. 16.983 × 4 =
  17. 17.701 × 3 =
  18. 18.936 × 3 =
  19. 19.946 × 4 =
  20. 20.271 × 3 =
  21. 21.557 × 9 =
  22. 22.337 × 9 =
  23. 23.473 × 9 =
  24. 24.218 × 9 =
  25. 25.234 × 9 =
  26. 26.495 × 4 =
  27. 27.571 × 4 =
  28. 28.227 × 4 =
  29. 29.364 × 7 =
  30. 30.988 × 6 =
  31. 31.281 × 7 =
  32. 32.357 × 6 =
  33. 33.408 × 9 =
  34. 34.719 × 6 =
  35. 35.556 × 3 =
  36. 36.303 × 5 =
  37. 37.721 × 3 =
  38. 38.717 × 9 =
  39. 39.767 × 5 =
  40. 40.191 × 7 =

Answer key

  1. 1407
  2. 2097
  3. 6818
  4. 2643
  5. 963
  6. 4655
  7. 3663
  8. 5376
  9. 2052
  10. 3405
  11. 1983
  12. 1795
  13. 2852
  14. 4115
  15. 1284
  16. 3932
  17. 2103
  18. 2808
  19. 3784
  20. 813
  21. 5013
  22. 3033
  23. 4257
  24. 1962
  25. 2106
  26. 1980
  27. 2284
  28. 908
  29. 2548
  30. 5928
  31. 1967
  32. 2142
  33. 3672
  34. 4314
  35. 1668
  36. 1515
  37. 2163
  38. 6453
  39. 3835
  40. 1337

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