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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 833 · 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. 1.452 × 3 =
  2. 2.698 × 6 =
  3. 3.952 × 8 =
  4. 4.941 × 5 =
  5. 5.794 × 3 =
  6. 6.846 × 6 =
  7. 7.189 × 3 =
  8. 8.656 × 4 =
  9. 9.143 × 8 =
  10. 10.755 × 5 =
  11. 11.623 × 5 =
  12. 12.708 × 6 =
  13. 13.216 × 3 =
  14. 14.631 × 7 =
  15. 15.907 × 9 =
  16. 16.485 × 3 =
  17. 17.973 × 8 =
  18. 18.315 × 6 =
  19. 19.211 × 4 =
  20. 20.944 × 4 =
  21. 21.233 × 5 =
  22. 22.618 × 5 =
  23. 23.303 × 8 =
  24. 24.241 × 9 =
  25. 25.918 × 5 =
  26. 26.911 × 7 =
  27. 27.612 × 7 =
  28. 28.389 × 9 =
  29. 29.264 × 8 =
  30. 30.225 × 3 =
  31. 31.943 × 5 =
  32. 32.401 × 5 =
  33. 33.816 × 4 =
  34. 34.143 × 4 =
  35. 35.295 × 5 =
  36. 36.241 × 5 =
  37. 37.457 × 3 =
  38. 38.201 × 9 =
  39. 39.319 × 6 =
  40. 40.706 × 4 =

Answer key

  1. 1356
  2. 4188
  3. 7616
  4. 4705
  5. 2382
  6. 5076
  7. 567
  8. 2624
  9. 1144
  10. 3775
  11. 3115
  12. 4248
  13. 648
  14. 4417
  15. 8163
  16. 1455
  17. 7784
  18. 1890
  19. 844
  20. 3776
  21. 1165
  22. 3090
  23. 2424
  24. 2169
  25. 4590
  26. 6377
  27. 4284
  28. 3501
  29. 2112
  30. 675
  31. 4715
  32. 2005
  33. 3264
  34. 572
  35. 1475
  36. 1205
  37. 1371
  38. 1809
  39. 1914
  40. 2824

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