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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 124 · 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. 1.604 × 5 =
  2. 2.412 × 3 =
  3. 3.759 × 6 =
  4. 4.427 × 5 =
  5. 5.273 × 7 =
  6. 6.151 × 9 =
  7. 7.169 × 3 =
  8. 8.197 × 6 =
  9. 9.856 × 3 =
  10. 10.248 × 9 =
  11. 11.264 × 7 =
  12. 12.751 × 4 =
  13. 13.201 × 5 =
  14. 14.388 × 8 =
  15. 15.236 × 6 =
  16. 16.251 × 4 =
  17. 17.203 × 9 =
  18. 18.349 × 6 =
  19. 19.821 × 8 =
  20. 20.606 × 3 =
  21. 21.666 × 8 =
  22. 22.314 × 4 =
  23. 23.453 × 7 =
  24. 24.577 × 9 =
  25. 25.186 × 3 =
  26. 26.374 × 9 =
  27. 27.651 × 9 =
  28. 28.302 × 4 =
  29. 29.571 × 7 =
  30. 30.183 × 8 =
  31. 31.185 × 8 =
  32. 32.752 × 7 =
  33. 33.437 × 9 =
  34. 34.644 × 3 =
  35. 35.541 × 5 =
  36. 36.674 × 9 =
  37. 37.795 × 8 =
  38. 38.649 × 3 =
  39. 39.215 × 6 =
  40. 40.545 × 3 =

Answer key

  1. 3020
  2. 1236
  3. 4554
  4. 2135
  5. 1911
  6. 1359
  7. 507
  8. 1182
  9. 2568
  10. 2232
  11. 1848
  12. 3004
  13. 1005
  14. 3104
  15. 1416
  16. 1004
  17. 1827
  18. 2094
  19. 6568
  20. 1818
  21. 5328
  22. 1256
  23. 3171
  24. 5193
  25. 558
  26. 3366
  27. 5859
  28. 1208
  29. 3997
  30. 1464
  31. 1480
  32. 5264
  33. 3933
  34. 1932
  35. 2705
  36. 6066
  37. 6360
  38. 1947
  39. 1290
  40. 1635

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