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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 457 · 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. 1.591 × 9 =
  2. 2.802 × 4 =
  3. 3.811 × 5 =
  4. 4.588 × 6 =
  5. 5.391 × 4 =
  6. 6.666 × 8 =
  7. 7.742 × 9 =
  8. 8.597 × 8 =
  9. 9.331 × 4 =
  10. 10.737 × 7 =
  11. 11.278 × 3 =
  12. 12.329 × 4 =
  13. 13.829 × 3 =
  14. 14.301 × 8 =
  15. 15.145 × 8 =
  16. 16.131 × 3 =
  17. 17.814 × 8 =
  18. 18.151 × 7 =
  19. 19.345 × 5 =
  20. 20.431 × 7 =
  21. 21.274 × 4 =
  22. 22.717 × 6 =
  23. 23.364 × 8 =
  24. 24.585 × 6 =
  25. 25.793 × 6 =
  26. 26.191 × 4 =
  27. 27.301 × 3 =
  28. 28.206 × 7 =
  29. 29.199 × 8 =
  30. 30.211 × 7 =
  31. 31.434 × 6 =
  32. 32.664 × 8 =
  33. 33.988 × 7 =
  34. 34.827 × 7 =
  35. 35.127 × 5 =
  36. 36.213 × 7 =
  37. 37.325 × 7 =
  38. 38.569 × 4 =
  39. 39.738 × 9 =
  40. 40.908 × 7 =

Answer key

  1. 5319
  2. 3208
  3. 4055
  4. 3528
  5. 1564
  6. 5328
  7. 6678
  8. 4776
  9. 1324
  10. 5159
  11. 834
  12. 1316
  13. 2487
  14. 2408
  15. 1160
  16. 393
  17. 6512
  18. 1057
  19. 1725
  20. 3017
  21. 1096
  22. 4302
  23. 2912
  24. 3510
  25. 4758
  26. 764
  27. 903
  28. 1442
  29. 1592
  30. 1477
  31. 2604
  32. 5312
  33. 6916
  34. 5789
  35. 635
  36. 1491
  37. 2275
  38. 2276
  39. 6642
  40. 6356

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