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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 474 · 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. 1.595 × 7 =
  2. 2.588 × 3 =
  3. 3.481 × 3 =
  4. 4.973 × 4 =
  5. 5.571 × 3 =
  6. 6.886 × 7 =
  7. 7.134 × 7 =
  8. 8.685 × 3 =
  9. 9.245 × 4 =
  10. 10.331 × 5 =
  11. 11.844 × 5 =
  12. 12.299 × 9 =
  13. 13.394 × 9 =
  14. 14.247 × 9 =
  15. 15.201 × 5 =
  16. 16.389 × 5 =
  17. 17.914 × 8 =
  18. 18.948 × 4 =
  19. 19.315 × 3 =
  20. 20.253 × 5 =
  21. 21.424 × 3 =
  22. 22.161 × 3 =
  23. 23.645 × 4 =
  24. 24.712 × 4 =
  25. 25.164 × 9 =
  26. 26.824 × 6 =
  27. 27.978 × 8 =
  28. 28.501 × 3 =
  29. 29.792 × 3 =
  30. 30.873 × 7 =
  31. 31.446 × 7 =
  32. 32.741 × 5 =
  33. 33.206 × 3 =
  34. 34.782 × 8 =
  35. 35.538 × 5 =
  36. 36.911 × 6 =
  37. 37.459 × 5 =
  38. 38.858 × 9 =
  39. 39.345 × 4 =
  40. 40.803 × 3 =

Answer key

  1. 4165
  2. 1764
  3. 1443
  4. 3892
  5. 1713
  6. 6202
  7. 938
  8. 2055
  9. 980
  10. 1655
  11. 4220
  12. 2691
  13. 3546
  14. 2223
  15. 1005
  16. 1945
  17. 7312
  18. 3792
  19. 945
  20. 1265
  21. 1272
  22. 483
  23. 2580
  24. 2848
  25. 1476
  26. 4944
  27. 7824
  28. 1503
  29. 2376
  30. 6111
  31. 3122
  32. 3705
  33. 618
  34. 6256
  35. 2690
  36. 5466
  37. 2295
  38. 7722
  39. 1380
  40. 2409

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