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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 982 · 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. 1.213 × 9 =
  2. 2.221 × 3 =
  3. 3.842 × 5 =
  4. 4.467 × 7 =
  5. 5.121 × 4 =
  6. 6.574 × 5 =
  7. 7.199 × 6 =
  8. 8.487 × 4 =
  9. 9.253 × 9 =
  10. 10.434 × 4 =
  11. 11.616 × 3 =
  12. 12.702 × 4 =
  13. 13.315 × 5 =
  14. 14.183 × 7 =
  15. 15.666 × 3 =
  16. 16.712 × 6 =
  17. 17.631 × 7 =
  18. 18.839 × 5 =
  19. 19.281 × 9 =
  20. 20.776 × 5 =
  21. 21.894 × 4 =
  22. 22.361 × 3 =
  23. 23.225 × 9 =
  24. 24.752 × 3 =
  25. 25.785 × 8 =
  26. 26.566 × 4 =
  27. 27.774 × 5 =
  28. 28.444 × 3 =
  29. 29.521 × 3 =
  30. 30.123 × 3 =
  31. 31.577 × 4 =
  32. 32.299 × 3 =
  33. 33.459 × 3 =
  34. 34.137 × 6 =
  35. 35.136 × 7 =
  36. 36.124 × 6 =
  37. 37.789 × 5 =
  38. 38.592 × 4 =
  39. 39.915 × 5 =
  40. 40.782 × 4 =

Answer key

  1. 1917
  2. 663
  3. 4210
  4. 3269
  5. 484
  6. 2870
  7. 1194
  8. 1948
  9. 2277
  10. 1736
  11. 1848
  12. 2808
  13. 1575
  14. 1281
  15. 1998
  16. 4272
  17. 4417
  18. 4195
  19. 2529
  20. 3880
  21. 3576
  22. 1083
  23. 2025
  24. 2256
  25. 6280
  26. 2264
  27. 3870
  28. 1332
  29. 1563
  30. 369
  31. 2308
  32. 897
  33. 1377
  34. 822
  35. 952
  36. 744
  37. 3945
  38. 2368
  39. 4575
  40. 3128

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