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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 857 · 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. 1.455 × 5 =
  2. 2.604 × 3 =
  3. 3.389 × 9 =
  4. 4.397 × 3 =
  5. 5.541 × 8 =
  6. 6.358 × 4 =
  7. 7.164 × 3 =
  8. 8.216 × 6 =
  9. 9.258 × 8 =
  10. 10.881 × 4 =
  11. 11.468 × 3 =
  12. 12.306 × 6 =
  13. 13.498 × 8 =
  14. 14.255 × 9 =
  15. 15.774 × 4 =
  16. 16.116 × 8 =
  17. 17.621 × 7 =
  18. 18.407 × 4 =
  19. 19.651 × 4 =
  20. 20.411 × 9 =
  21. 21.294 × 8 =
  22. 22.498 × 9 =
  23. 23.755 × 6 =
  24. 24.712 × 6 =
  25. 25.246 × 3 =
  26. 26.778 × 3 =
  27. 27.701 × 8 =
  28. 28.338 × 9 =
  29. 29.775 × 6 =
  30. 30.866 × 4 =
  31. 31.845 × 4 =
  32. 32.196 × 6 =
  33. 33.261 × 4 =
  34. 34.604 × 5 =
  35. 35.271 × 9 =
  36. 36.221 × 8 =
  37. 37.226 × 5 =
  38. 38.153 × 4 =
  39. 39.653 × 3 =
  40. 40.596 × 4 =

Answer key

  1. 2275
  2. 1812
  3. 3501
  4. 1191
  5. 4328
  6. 1432
  7. 492
  8. 1296
  9. 2064
  10. 3524
  11. 1404
  12. 1836
  13. 3984
  14. 2295
  15. 3096
  16. 928
  17. 4347
  18. 1628
  19. 2604
  20. 3699
  21. 2352
  22. 4482
  23. 4530
  24. 4272
  25. 738
  26. 2334
  27. 5608
  28. 3042
  29. 4650
  30. 3464
  31. 3380
  32. 1176
  33. 1044
  34. 3020
  35. 2439
  36. 1768
  37. 1130
  38. 612
  39. 1959
  40. 2384

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