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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 695 · 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. 1.171 × 5 =
  2. 2.488 × 9 =
  3. 3.815 × 3 =
  4. 4.202 × 8 =
  5. 5.292 × 9 =
  6. 6.482 × 4 =
  7. 7.528 × 6 =
  8. 8.655 × 3 =
  9. 9.417 × 8 =
  10. 10.667 × 6 =
  11. 11.948 × 4 =
  12. 12.341 × 5 =
  13. 13.211 × 8 =
  14. 14.236 × 4 =
  15. 15.374 × 9 =
  16. 16.708 × 7 =
  17. 17.847 × 9 =
  18. 18.246 × 3 =
  19. 19.161 × 8 =
  20. 20.853 × 3 =
  21. 21.552 × 4 =
  22. 22.893 × 3 =
  23. 23.386 × 6 =
  24. 24.948 × 5 =
  25. 25.909 × 6 =
  26. 26.131 × 9 =
  27. 27.338 × 3 =
  28. 28.401 × 4 =
  29. 29.289 × 5 =
  30. 30.761 × 7 =
  31. 31.171 × 6 =
  32. 32.271 × 6 =
  33. 33.461 × 8 =
  34. 34.662 × 8 =
  35. 35.336 × 5 =
  36. 36.135 × 8 =
  37. 37.694 × 5 =
  38. 38.214 × 7 =
  39. 39.957 × 6 =
  40. 40.962 × 4 =

Answer key

  1. 855
  2. 4392
  3. 2445
  4. 1616
  5. 2628
  6. 1928
  7. 3168
  8. 1965
  9. 3336
  10. 4002
  11. 3792
  12. 1705
  13. 1688
  14. 944
  15. 3366
  16. 4956
  17. 7623
  18. 738
  19. 1288
  20. 2559
  21. 2208
  22. 2679
  23. 2316
  24. 4740
  25. 5454
  26. 1179
  27. 1014
  28. 1604
  29. 1445
  30. 5327
  31. 1026
  32. 1626
  33. 3688
  34. 5296
  35. 1680
  36. 1080
  37. 3470
  38. 1498
  39. 5742
  40. 3848

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