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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 362 · 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. 1.282 × 5 =
  2. 2.486 × 5 =
  3. 3.598 × 8 =
  4. 4.235 × 4 =
  5. 5.361 × 7 =
  6. 6.488 × 3 =
  7. 7.555 × 4 =
  8. 8.791 × 9 =
  9. 9.818 × 6 =
  10. 10.292 × 3 =
  11. 11.319 × 7 =
  12. 12.612 × 5 =
  13. 13.917 × 5 =
  14. 14.603 × 4 =
  15. 15.693 × 9 =
  16. 16.265 × 9 =
  17. 17.432 × 8 =
  18. 18.576 × 5 =
  19. 19.385 × 9 =
  20. 20.473 × 7 =
  21. 21.931 × 9 =
  22. 22.414 × 5 =
  23. 23.406 × 5 =
  24. 24.888 × 9 =
  25. 25.233 × 7 =
  26. 26.139 × 4 =
  27. 27.906 × 7 =
  28. 28.322 × 6 =
  29. 29.891 × 7 =
  30. 30.906 × 8 =
  31. 31.561 × 7 =
  32. 32.901 × 9 =
  33. 33.128 × 5 =
  34. 34.581 × 6 =
  35. 35.958 × 8 =
  36. 36.761 × 9 =
  37. 37.547 × 5 =
  38. 38.817 × 8 =
  39. 39.426 × 7 =
  40. 40.931 × 8 =

Answer key

  1. 1410
  2. 2430
  3. 4784
  4. 940
  5. 2527
  6. 1464
  7. 2220
  8. 7119
  9. 4908
  10. 876
  11. 2233
  12. 3060
  13. 4585
  14. 2412
  15. 6237
  16. 2385
  17. 3456
  18. 2880
  19. 3465
  20. 3311
  21. 8379
  22. 2070
  23. 2030
  24. 7992
  25. 1631
  26. 556
  27. 6342
  28. 1932
  29. 6237
  30. 7248
  31. 3927
  32. 8109
  33. 640
  34. 3486
  35. 7664
  36. 6849
  37. 2735
  38. 6536
  39. 2982
  40. 7448

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