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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 43 · 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. 1.354 × 4 =
  2. 2.214 × 4 =
  3. 3.945 × 6 =
  4. 4.579 × 9 =
  5. 5.758 × 6 =
  6. 6.523 × 7 =
  7. 7.156 × 7 =
  8. 8.423 × 8 =
  9. 9.373 × 4 =
  10. 10.349 × 9 =
  11. 11.466 × 7 =
  12. 12.544 × 9 =
  13. 13.437 × 9 =
  14. 14.735 × 6 =
  15. 15.147 × 8 =
  16. 16.166 × 9 =
  17. 17.274 × 9 =
  18. 18.171 × 9 =
  19. 19.548 × 5 =
  20. 20.372 × 8 =
  21. 21.184 × 7 =
  22. 22.547 × 3 =
  23. 23.614 × 6 =
  24. 24.491 × 7 =
  25. 25.732 × 4 =
  26. 26.792 × 6 =
  27. 27.836 × 9 =
  28. 28.538 × 7 =
  29. 29.796 × 4 =
  30. 30.909 × 9 =
  31. 31.989 × 3 =
  32. 32.729 × 7 =
  33. 33.632 × 7 =
  34. 34.538 × 9 =
  35. 35.229 × 9 =
  36. 36.384 × 8 =
  37. 37.644 × 7 =
  38. 38.397 × 3 =
  39. 39.597 × 5 =
  40. 40.433 × 4 =

Answer key

  1. 1416
  2. 856
  3. 5670
  4. 5211
  5. 4548
  6. 3661
  7. 1092
  8. 3384
  9. 1492
  10. 3141
  11. 3262
  12. 4896
  13. 3933
  14. 4410
  15. 1176
  16. 1494
  17. 2466
  18. 1539
  19. 2740
  20. 2976
  21. 1288
  22. 1641
  23. 3684
  24. 3437
  25. 2928
  26. 4752
  27. 7524
  28. 3766
  29. 3184
  30. 8181
  31. 2967
  32. 5103
  33. 4424
  34. 4842
  35. 2061
  36. 3072
  37. 4508
  38. 1191
  39. 2985
  40. 1732

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