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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 905 · 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. 1.251 × 3 =
  2. 2.235 × 6 =
  3. 3.964 × 6 =
  4. 4.522 × 5 =
  5. 5.528 × 8 =
  6. 6.842 × 9 =
  7. 7.818 × 9 =
  8. 8.921 × 9 =
  9. 9.191 × 4 =
  10. 10.831 × 3 =
  11. 11.791 × 3 =
  12. 12.301 × 4 =
  13. 13.735 × 7 =
  14. 14.314 × 3 =
  15. 15.191 × 9 =
  16. 16.703 × 8 =
  17. 17.842 × 3 =
  18. 18.833 × 3 =
  19. 19.782 × 7 =
  20. 20.828 × 9 =
  21. 21.608 × 5 =
  22. 22.663 × 5 =
  23. 23.621 × 5 =
  24. 24.798 × 5 =
  25. 25.895 × 9 =
  26. 26.386 × 3 =
  27. 27.814 × 6 =
  28. 28.813 × 5 =
  29. 29.248 × 3 =
  30. 30.501 × 4 =
  31. 31.166 × 4 =
  32. 32.666 × 4 =
  33. 33.372 × 8 =
  34. 34.461 × 5 =
  35. 35.395 × 3 =
  36. 36.525 × 8 =
  37. 37.696 × 8 =
  38. 38.488 × 8 =
  39. 39.251 × 8 =
  40. 40.372 × 3 =

Answer key

  1. 753
  2. 1410
  3. 5784
  4. 2610
  5. 4224
  6. 7578
  7. 7362
  8. 8289
  9. 764
  10. 2493
  11. 2373
  12. 1204
  13. 5145
  14. 942
  15. 1719
  16. 5624
  17. 2526
  18. 2499
  19. 5474
  20. 7452
  21. 3040
  22. 3315
  23. 3105
  24. 3990
  25. 8055
  26. 1158
  27. 4884
  28. 4065
  29. 744
  30. 2004
  31. 664
  32. 2664
  33. 2976
  34. 2305
  35. 1185
  36. 4200
  37. 5568
  38. 3904
  39. 2008
  40. 1116

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