← Multiply 3-digit by 1-digit, hundreds first lesson New set →

3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 485 · 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. 1.831 × 7 =
  2. 2.113 × 4 =
  3. 3.705 × 8 =
  4. 4.539 × 4 =
  5. 5.787 × 5 =
  6. 6.413 × 7 =
  7. 7.969 × 4 =
  8. 8.201 × 3 =
  9. 9.214 × 8 =
  10. 10.333 × 7 =
  11. 11.271 × 4 =
  12. 12.285 × 3 =
  13. 13.496 × 7 =
  14. 14.845 × 5 =
  15. 15.354 × 3 =
  16. 16.165 × 5 =
  17. 17.596 × 5 =
  18. 18.978 × 5 =
  19. 19.398 × 7 =
  20. 20.172 × 4 =
  21. 21.277 × 3 =
  22. 22.372 × 3 =
  23. 23.303 × 6 =
  24. 24.831 × 5 =
  25. 25.317 × 6 =
  26. 26.886 × 3 =
  27. 27.408 × 6 =
  28. 28.841 × 4 =
  29. 29.164 × 9 =
  30. 30.811 × 8 =
  31. 31.922 × 7 =
  32. 32.679 × 8 =
  33. 33.461 × 6 =
  34. 34.299 × 5 =
  35. 35.904 × 7 =
  36. 36.645 × 9 =
  37. 37.291 × 3 =
  38. 38.611 × 5 =
  39. 39.734 × 9 =
  40. 40.551 × 5 =

Answer key

  1. 5817
  2. 452
  3. 5640
  4. 2156
  5. 3935
  6. 2891
  7. 3876
  8. 603
  9. 1712
  10. 2331
  11. 1084
  12. 855
  13. 3472
  14. 4225
  15. 1062
  16. 825
  17. 2980
  18. 4890
  19. 2786
  20. 688
  21. 831
  22. 1116
  23. 1818
  24. 4155
  25. 1902
  26. 2658
  27. 2448
  28. 3364
  29. 1476
  30. 6488
  31. 6454
  32. 5432
  33. 2766
  34. 1495
  35. 6328
  36. 5805
  37. 873
  38. 3055
  39. 6606
  40. 2755

Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths