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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 409 · 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. 1.306 × 9 =
  2. 2.712 × 8 =
  3. 3.213 × 8 =
  4. 4.956 × 4 =
  5. 5.353 × 6 =
  6. 6.541 × 7 =
  7. 7.276 × 3 =
  8. 8.555 × 4 =
  9. 9.971 × 4 =
  10. 10.666 × 5 =
  11. 11.725 × 9 =
  12. 12.151 × 9 =
  13. 13.631 × 9 =
  14. 14.581 × 4 =
  15. 15.887 × 8 =
  16. 16.121 × 3 =
  17. 17.608 × 8 =
  18. 18.321 × 4 =
  19. 19.246 × 7 =
  20. 20.795 × 4 =
  21. 21.665 × 3 =
  22. 22.535 × 3 =
  23. 23.336 × 8 =
  24. 24.875 × 7 =
  25. 25.398 × 8 =
  26. 26.931 × 5 =
  27. 27.195 × 5 =
  28. 28.141 × 5 =
  29. 29.414 × 7 =
  30. 30.201 × 6 =
  31. 31.592 × 7 =
  32. 32.846 × 3 =
  33. 33.334 × 3 =
  34. 34.899 × 3 =
  35. 35.618 × 3 =
  36. 36.656 × 4 =
  37. 37.317 × 3 =
  38. 38.831 × 7 =
  39. 39.693 × 6 =
  40. 40.331 × 9 =

Answer key

  1. 2754
  2. 5696
  3. 1704
  4. 3824
  5. 2118
  6. 3787
  7. 828
  8. 2220
  9. 3884
  10. 3330
  11. 6525
  12. 1359
  13. 5679
  14. 2324
  15. 7096
  16. 363
  17. 4864
  18. 1284
  19. 1722
  20. 3180
  21. 1995
  22. 1605
  23. 2688
  24. 6125
  25. 3184
  26. 4655
  27. 975
  28. 705
  29. 2898
  30. 1206
  31. 4144
  32. 2538
  33. 1002
  34. 2697
  35. 1854
  36. 2624
  37. 951
  38. 5817
  39. 4158
  40. 2979

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