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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 969 · 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. 1.141 × 3 =
  2. 2.502 × 8 =
  3. 3.814 × 4 =
  4. 4.941 × 6 =
  5. 5.545 × 4 =
  6. 6.462 × 3 =
  7. 7.571 × 3 =
  8. 8.736 × 6 =
  9. 9.375 × 7 =
  10. 10.847 × 8 =
  11. 11.391 × 8 =
  12. 12.144 × 4 =
  13. 13.811 × 7 =
  14. 14.399 × 5 =
  15. 15.894 × 6 =
  16. 16.789 × 4 =
  17. 17.588 × 7 =
  18. 18.801 × 9 =
  19. 19.821 × 3 =
  20. 20.325 × 7 =
  21. 21.761 × 9 =
  22. 22.578 × 4 =
  23. 23.133 × 7 =
  24. 24.333 × 9 =
  25. 25.219 × 6 =
  26. 26.471 × 6 =
  27. 27.152 × 9 =
  28. 28.143 × 3 =
  29. 29.256 × 5 =
  30. 30.878 × 3 =
  31. 31.452 × 3 =
  32. 32.702 × 9 =
  33. 33.474 × 8 =
  34. 34.848 × 6 =
  35. 35.475 × 8 =
  36. 36.594 × 4 =
  37. 37.659 × 3 =
  38. 38.802 × 5 =
  39. 39.136 × 7 =
  40. 40.144 × 6 =

Answer key

  1. 423
  2. 4016
  3. 3256
  4. 5646
  5. 2180
  6. 1386
  7. 1713
  8. 4416
  9. 2625
  10. 6776
  11. 3128
  12. 576
  13. 5677
  14. 1995
  15. 5364
  16. 3156
  17. 4116
  18. 7209
  19. 2463
  20. 2275
  21. 6849
  22. 2312
  23. 931
  24. 2997
  25. 1314
  26. 2826
  27. 1368
  28. 429
  29. 1280
  30. 2634
  31. 1356
  32. 6318
  33. 3792
  34. 5088
  35. 3800
  36. 2376
  37. 1977
  38. 4010
  39. 952
  40. 864

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