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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 964 · 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. 1.821 × 3 =
  2. 2.182 × 7 =
  3. 3.837 × 5 =
  4. 4.219 × 3 =
  5. 5.582 × 3 =
  6. 6.385 × 6 =
  7. 7.896 × 3 =
  8. 8.541 × 8 =
  9. 9.349 × 7 =
  10. 10.182 × 8 =
  11. 11.447 × 6 =
  12. 12.635 × 5 =
  13. 13.905 × 4 =
  14. 14.116 × 6 =
  15. 15.751 × 9 =
  16. 16.215 × 8 =
  17. 17.355 × 5 =
  18. 18.161 × 8 =
  19. 19.181 × 7 =
  20. 20.265 × 9 =
  21. 21.544 × 3 =
  22. 22.566 × 7 =
  23. 23.473 × 6 =
  24. 24.803 × 8 =
  25. 25.259 × 3 =
  26. 26.391 × 3 =
  27. 27.507 × 6 =
  28. 28.585 × 7 =
  29. 29.135 × 7 =
  30. 30.918 × 9 =
  31. 31.931 × 9 =
  32. 32.501 × 3 =
  33. 33.572 × 3 =
  34. 34.831 × 7 =
  35. 35.864 × 4 =
  36. 36.247 × 6 =
  37. 37.157 × 7 =
  38. 38.882 × 5 =
  39. 39.335 × 8 =
  40. 40.856 × 4 =

Answer key

  1. 2463
  2. 1274
  3. 4185
  4. 657
  5. 1746
  6. 2310
  7. 2688
  8. 4328
  9. 2443
  10. 1456
  11. 2682
  12. 3175
  13. 3620
  14. 696
  15. 6759
  16. 1720
  17. 1775
  18. 1288
  19. 1267
  20. 2385
  21. 1632
  22. 3962
  23. 2838
  24. 6424
  25. 777
  26. 1173
  27. 3042
  28. 4095
  29. 945
  30. 8262
  31. 8379
  32. 1503
  33. 1716
  34. 5817
  35. 3456
  36. 1482
  37. 1099
  38. 4410
  39. 2680
  40. 3424

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