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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 998 · 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. 1.208 × 8 =
  2. 2.282 × 3 =
  3. 3.478 × 4 =
  4. 4.571 × 9 =
  5. 5.681 × 4 =
  6. 6.138 × 4 =
  7. 7.237 × 6 =
  8. 8.378 × 6 =
  9. 9.315 × 9 =
  10. 10.237 × 9 =
  11. 11.465 × 5 =
  12. 12.937 × 4 =
  13. 13.123 × 3 =
  14. 14.774 × 4 =
  15. 15.249 × 8 =
  16. 16.258 × 3 =
  17. 17.961 × 3 =
  18. 18.933 × 5 =
  19. 19.482 × 8 =
  20. 20.761 × 4 =
  21. 21.736 × 6 =
  22. 22.497 × 3 =
  23. 23.879 × 9 =
  24. 24.922 × 3 =
  25. 25.791 × 8 =
  26. 26.763 × 6 =
  27. 27.621 × 7 =
  28. 28.616 × 5 =
  29. 29.569 × 4 =
  30. 30.526 × 4 =
  31. 31.575 × 8 =
  32. 32.628 × 8 =
  33. 33.865 × 5 =
  34. 34.291 × 7 =
  35. 35.897 × 8 =
  36. 36.162 × 6 =
  37. 37.523 × 6 =
  38. 38.579 × 5 =
  39. 39.156 × 8 =
  40. 40.847 × 6 =

Answer key

  1. 1664
  2. 846
  3. 1912
  4. 5139
  5. 2724
  6. 552
  7. 1422
  8. 2268
  9. 2835
  10. 2133
  11. 2325
  12. 3748
  13. 369
  14. 3096
  15. 1992
  16. 774
  17. 2883
  18. 4665
  19. 3856
  20. 3044
  21. 4416
  22. 1491
  23. 7911
  24. 2766
  25. 6328
  26. 4578
  27. 4347
  28. 3080
  29. 2276
  30. 2104
  31. 4600
  32. 5024
  33. 4325
  34. 2037
  35. 7176
  36. 972
  37. 3138
  38. 2895
  39. 1248
  40. 5082

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