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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 351 · 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. 1.888 × 5 =
  2. 2.629 × 3 =
  3. 3.399 × 9 =
  4. 4.253 × 4 =
  5. 5.636 × 5 =
  6. 6.579 × 3 =
  7. 7.582 × 9 =
  8. 8.184 × 8 =
  9. 9.546 × 7 =
  10. 10.373 × 8 =
  11. 11.912 × 6 =
  12. 12.751 × 4 =
  13. 13.557 × 4 =
  14. 14.813 × 6 =
  15. 15.296 × 9 =
  16. 16.974 × 3 =
  17. 17.765 × 9 =
  18. 18.535 × 6 =
  19. 19.979 × 5 =
  20. 20.751 × 3 =
  21. 21.508 × 6 =
  22. 22.323 × 5 =
  23. 23.413 × 4 =
  24. 24.195 × 5 =
  25. 25.931 × 4 =
  26. 26.375 × 6 =
  27. 27.604 × 9 =
  28. 28.811 × 8 =
  29. 29.313 × 8 =
  30. 30.413 × 8 =
  31. 31.802 × 5 =
  32. 32.348 × 4 =
  33. 33.233 × 6 =
  34. 34.464 × 8 =
  35. 35.695 × 8 =
  36. 36.147 × 3 =
  37. 37.328 × 9 =
  38. 38.542 × 4 =
  39. 39.339 × 8 =
  40. 40.265 × 6 =

Answer key

  1. 4440
  2. 1887
  3. 3591
  4. 1012
  5. 3180
  6. 1737
  7. 5238
  8. 1472
  9. 3822
  10. 2984
  11. 5472
  12. 3004
  13. 2228
  14. 4878
  15. 2664
  16. 2922
  17. 6885
  18. 3210
  19. 4895
  20. 2253
  21. 3048
  22. 1615
  23. 1652
  24. 975
  25. 3724
  26. 2250
  27. 5436
  28. 6488
  29. 2504
  30. 3304
  31. 4010
  32. 1392
  33. 1398
  34. 3712
  35. 5560
  36. 441
  37. 2952
  38. 2168
  39. 2712
  40. 1590

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