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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 180 · 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. 1.345 × 4 =
  2. 2.934 × 8 =
  3. 3.174 × 4 =
  4. 4.266 × 5 =
  5. 5.545 × 5 =
  6. 6.918 × 7 =
  7. 7.619 × 3 =
  8. 8.477 × 6 =
  9. 9.828 × 4 =
  10. 10.428 × 3 =
  11. 11.422 × 5 =
  12. 12.361 × 4 =
  13. 13.521 × 4 =
  14. 14.179 × 5 =
  15. 15.786 × 4 =
  16. 16.317 × 5 =
  17. 17.469 × 6 =
  18. 18.711 × 4 =
  19. 19.654 × 4 =
  20. 20.739 × 8 =
  21. 21.311 × 6 =
  22. 22.757 × 6 =
  23. 23.476 × 6 =
  24. 24.399 × 4 =
  25. 25.129 × 4 =
  26. 26.578 × 4 =
  27. 27.541 × 3 =
  28. 28.299 × 4 =
  29. 29.594 × 6 =
  30. 30.453 × 9 =
  31. 31.156 × 4 =
  32. 32.827 × 3 =
  33. 33.851 × 8 =
  34. 34.274 × 6 =
  35. 35.118 × 8 =
  36. 36.326 × 3 =
  37. 37.969 × 9 =
  38. 38.939 × 5 =
  39. 39.193 × 6 =
  40. 40.123 × 6 =

Answer key

  1. 1380
  2. 7472
  3. 696
  4. 1330
  5. 2725
  6. 6426
  7. 1857
  8. 2862
  9. 3312
  10. 1284
  11. 2110
  12. 1444
  13. 2084
  14. 895
  15. 3144
  16. 1585
  17. 2814
  18. 2844
  19. 2616
  20. 5912
  21. 1866
  22. 4542
  23. 2856
  24. 1596
  25. 516
  26. 2312
  27. 1623
  28. 1196
  29. 3564
  30. 4077
  31. 624
  32. 2481
  33. 6808
  34. 1644
  35. 944
  36. 978
  37. 8721
  38. 4695
  39. 1158
  40. 738

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