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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 285 · 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. 1.582 × 9 =
  2. 2.193 × 6 =
  3. 3.275 × 7 =
  4. 4.208 × 3 =
  5. 5.754 × 4 =
  6. 6.211 × 3 =
  7. 7.767 × 6 =
  8. 8.806 × 3 =
  9. 9.508 × 4 =
  10. 10.569 × 6 =
  11. 11.291 × 6 =
  12. 12.883 × 7 =
  13. 13.744 × 5 =
  14. 14.602 × 8 =
  15. 15.172 × 9 =
  16. 16.501 × 8 =
  17. 17.482 × 8 =
  18. 18.284 × 9 =
  19. 19.628 × 7 =
  20. 20.261 × 6 =
  21. 21.414 × 7 =
  22. 22.583 × 8 =
  23. 23.184 × 7 =
  24. 24.989 × 3 =
  25. 25.504 × 7 =
  26. 26.548 × 7 =
  27. 27.851 × 7 =
  28. 28.281 × 5 =
  29. 29.528 × 5 =
  30. 30.152 × 7 =
  31. 31.158 × 7 =
  32. 32.802 × 4 =
  33. 33.557 × 3 =
  34. 34.385 × 5 =
  35. 35.207 × 3 =
  36. 36.804 × 5 =
  37. 37.508 × 9 =
  38. 38.374 × 9 =
  39. 39.983 × 5 =
  40. 40.156 × 4 =

Answer key

  1. 5238
  2. 1158
  3. 1925
  4. 624
  5. 3016
  6. 633
  7. 4602
  8. 2418
  9. 2032
  10. 3414
  11. 1746
  12. 6181
  13. 3720
  14. 4816
  15. 1548
  16. 4008
  17. 3856
  18. 2556
  19. 4396
  20. 1566
  21. 2898
  22. 4664
  23. 1288
  24. 2967
  25. 3528
  26. 3836
  27. 5957
  28. 1405
  29. 2640
  30. 1064
  31. 1106
  32. 3208
  33. 1671
  34. 1925
  35. 621
  36. 4020
  37. 4572
  38. 3366
  39. 4915
  40. 624

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