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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 469 · 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. 1.439 × 7 =
  2. 2.417 × 3 =
  3. 3.582 × 8 =
  4. 4.701 × 6 =
  5. 5.185 × 3 =
  6. 6.481 × 4 =
  7. 7.741 × 8 =
  8. 8.701 × 7 =
  9. 9.112 × 3 =
  10. 10.844 × 4 =
  11. 11.246 × 4 =
  12. 12.986 × 9 =
  13. 13.246 × 5 =
  14. 14.332 × 8 =
  15. 15.557 × 8 =
  16. 16.556 × 7 =
  17. 17.714 × 9 =
  18. 18.268 × 3 =
  19. 19.331 × 3 =
  20. 20.322 × 8 =
  21. 21.187 × 3 =
  22. 22.591 × 7 =
  23. 23.657 × 5 =
  24. 24.593 × 4 =
  25. 25.777 × 3 =
  26. 26.154 × 5 =
  27. 27.115 × 4 =
  28. 28.425 × 6 =
  29. 29.532 × 4 =
  30. 30.904 × 8 =
  31. 31.857 × 9 =
  32. 32.986 × 8 =
  33. 33.206 × 5 =
  34. 34.968 × 3 =
  35. 35.416 × 7 =
  36. 36.241 × 3 =
  37. 37.281 × 5 =
  38. 38.769 × 9 =
  39. 39.236 × 4 =
  40. 40.718 × 5 =

Answer key

  1. 3073
  2. 1251
  3. 4656
  4. 4206
  5. 555
  6. 1924
  7. 5928
  8. 4907
  9. 336
  10. 3376
  11. 984
  12. 8874
  13. 1230
  14. 2656
  15. 4456
  16. 3892
  17. 6426
  18. 804
  19. 993
  20. 2576
  21. 561
  22. 4137
  23. 3285
  24. 2372
  25. 2331
  26. 770
  27. 460
  28. 2550
  29. 2128
  30. 7232
  31. 7713
  32. 7888
  33. 1030
  34. 2904
  35. 2912
  36. 723
  37. 1405
  38. 6921
  39. 944
  40. 3590

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