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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 7 · 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. 1.461 × 5 =
  2. 2.744 × 9 =
  3. 3.748 × 9 =
  4. 4.812 × 5 =
  5. 5.151 × 5 =
  6. 6.147 × 7 =
  7. 7.831 × 6 =
  8. 8.604 × 4 =
  9. 9.813 × 8 =
  10. 10.811 × 8 =
  11. 11.225 × 3 =
  12. 12.576 × 9 =
  13. 13.656 × 4 =
  14. 14.922 × 4 =
  15. 15.743 × 9 =
  16. 16.146 × 9 =
  17. 17.712 × 7 =
  18. 18.172 × 9 =
  19. 19.172 × 4 =
  20. 20.315 × 7 =
  21. 21.681 × 3 =
  22. 22.934 × 6 =
  23. 23.533 × 4 =
  24. 24.318 × 9 =
  25. 25.818 × 6 =
  26. 26.619 × 7 =
  27. 27.414 × 4 =
  28. 28.792 × 3 =
  29. 29.473 × 5 =
  30. 30.903 × 4 =
  31. 31.778 × 4 =
  32. 32.189 × 3 =
  33. 33.743 × 4 =
  34. 34.389 × 6 =
  35. 35.468 × 7 =
  36. 36.279 × 5 =
  37. 37.518 × 9 =
  38. 38.541 × 7 =
  39. 39.889 × 4 =
  40. 40.824 × 8 =

Answer key

  1. 2305
  2. 6696
  3. 6732
  4. 4060
  5. 755
  6. 1029
  7. 4986
  8. 2416
  9. 6504
  10. 6488
  11. 675
  12. 5184
  13. 2624
  14. 3688
  15. 6687
  16. 1314
  17. 4984
  18. 1548
  19. 688
  20. 2205
  21. 2043
  22. 5604
  23. 2132
  24. 2862
  25. 4908
  26. 4333
  27. 1656
  28. 2376
  29. 2365
  30. 3612
  31. 3112
  32. 567
  33. 2972
  34. 2334
  35. 3276
  36. 1395
  37. 4662
  38. 3787
  39. 3556
  40. 6592

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