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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 990 · 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. 1.252 × 4 =
  2. 2.184 × 4 =
  3. 3.138 × 8 =
  4. 4.926 × 3 =
  5. 5.856 × 6 =
  6. 6.476 × 9 =
  7. 7.634 × 3 =
  8. 8.222 × 7 =
  9. 9.376 × 4 =
  10. 10.151 × 7 =
  11. 11.131 × 5 =
  12. 12.649 × 9 =
  13. 13.256 × 3 =
  14. 14.429 × 5 =
  15. 15.922 × 3 =
  16. 16.611 × 7 =
  17. 17.398 × 4 =
  18. 18.204 × 8 =
  19. 19.663 × 9 =
  20. 20.874 × 3 =
  21. 21.229 × 7 =
  22. 22.306 × 4 =
  23. 23.604 × 6 =
  24. 24.143 × 3 =
  25. 25.136 × 9 =
  26. 26.624 × 3 =
  27. 27.941 × 3 =
  28. 28.551 × 3 =
  29. 29.952 × 9 =
  30. 30.327 × 5 =
  31. 31.762 × 6 =
  32. 32.901 × 8 =
  33. 33.844 × 9 =
  34. 34.565 × 5 =
  35. 35.186 × 6 =
  36. 36.284 × 3 =
  37. 37.541 × 6 =
  38. 38.271 × 3 =
  39. 39.317 × 5 =
  40. 40.367 × 6 =

Answer key

  1. 1008
  2. 736
  3. 1104
  4. 2778
  5. 5136
  6. 4284
  7. 1902
  8. 1554
  9. 1504
  10. 1057
  11. 655
  12. 5841
  13. 768
  14. 2145
  15. 2766
  16. 4277
  17. 1592
  18. 1632
  19. 5967
  20. 2622
  21. 1603
  22. 1224
  23. 3624
  24. 429
  25. 1224
  26. 1872
  27. 2823
  28. 1653
  29. 8568
  30. 1635
  31. 4572
  32. 7208
  33. 7596
  34. 2825
  35. 1116
  36. 852
  37. 3246
  38. 813
  39. 1585
  40. 2202

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