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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 96 · 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. 1.454 × 5 =
  2. 2.797 × 9 =
  3. 3.141 × 6 =
  4. 4.212 × 7 =
  5. 5.798 × 6 =
  6. 6.876 × 6 =
  7. 7.611 × 5 =
  8. 8.241 × 6 =
  9. 9.736 × 8 =
  10. 10.378 × 6 =
  11. 11.815 × 8 =
  12. 12.523 × 4 =
  13. 13.401 × 9 =
  14. 14.428 × 8 =
  15. 15.867 × 4 =
  16. 16.769 × 4 =
  17. 17.303 × 8 =
  18. 18.865 × 5 =
  19. 19.484 × 9 =
  20. 20.405 × 6 =
  21. 21.326 × 5 =
  22. 22.591 × 4 =
  23. 23.149 × 8 =
  24. 24.747 × 7 =
  25. 25.666 × 7 =
  26. 26.786 × 3 =
  27. 27.292 × 3 =
  28. 28.221 × 3 =
  29. 29.329 × 6 =
  30. 30.113 × 8 =
  31. 31.323 × 4 =
  32. 32.279 × 7 =
  33. 33.422 × 5 =
  34. 34.483 × 4 =
  35. 35.558 × 3 =
  36. 36.671 × 6 =
  37. 37.283 × 5 =
  38. 38.549 × 3 =
  39. 39.115 × 6 =
  40. 40.451 × 3 =

Answer key

  1. 2270
  2. 7173
  3. 846
  4. 1484
  5. 4788
  6. 5256
  7. 3055
  8. 1446
  9. 5888
  10. 2268
  11. 6520
  12. 2092
  13. 3609
  14. 3424
  15. 3468
  16. 3076
  17. 2424
  18. 4325
  19. 4356
  20. 2430
  21. 1630
  22. 2364
  23. 1192
  24. 5229
  25. 4662
  26. 2358
  27. 876
  28. 663
  29. 1974
  30. 904
  31. 1292
  32. 1953
  33. 2110
  34. 1932
  35. 1674
  36. 4026
  37. 1415
  38. 1647
  39. 690
  40. 1353

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