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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 902 · 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. 1.598 × 3 =
  2. 2.192 × 3 =
  3. 3.961 × 5 =
  4. 4.527 × 7 =
  5. 5.167 × 3 =
  6. 6.377 × 7 =
  7. 7.266 × 9 =
  8. 8.223 × 6 =
  9. 9.161 × 6 =
  10. 10.407 × 3 =
  11. 11.241 × 4 =
  12. 12.172 × 3 =
  13. 13.441 × 5 =
  14. 14.727 × 4 =
  15. 15.692 × 7 =
  16. 16.601 × 4 =
  17. 17.535 × 7 =
  18. 18.876 × 6 =
  19. 19.165 × 8 =
  20. 20.432 × 6 =
  21. 21.961 × 8 =
  22. 22.315 × 8 =
  23. 23.552 × 9 =
  24. 24.197 × 9 =
  25. 25.495 × 7 =
  26. 26.151 × 5 =
  27. 27.142 × 5 =
  28. 28.517 × 8 =
  29. 29.801 × 9 =
  30. 30.641 × 9 =
  31. 31.487 × 7 =
  32. 32.156 × 8 =
  33. 33.261 × 5 =
  34. 34.441 × 4 =
  35. 35.861 × 8 =
  36. 36.161 × 7 =
  37. 37.145 × 8 =
  38. 38.166 × 4 =
  39. 39.133 × 8 =
  40. 40.517 × 3 =

Answer key

  1. 1794
  2. 576
  3. 4805
  4. 3689
  5. 501
  6. 2639
  7. 2394
  8. 1338
  9. 966
  10. 1221
  11. 964
  12. 516
  13. 2205
  14. 2908
  15. 4844
  16. 2404
  17. 3745
  18. 5256
  19. 1320
  20. 2592
  21. 7688
  22. 2520
  23. 4968
  24. 1773
  25. 3465
  26. 755
  27. 710
  28. 4136
  29. 7209
  30. 5769
  31. 3409
  32. 1248
  33. 1305
  34. 1764
  35. 6888
  36. 1127
  37. 1160
  38. 664
  39. 1064
  40. 1551

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