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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 937 · 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. 1.431 × 5 =
  2. 2.176 × 3 =
  3. 3.135 × 3 =
  4. 4.373 × 9 =
  5. 5.268 × 7 =
  6. 6.431 × 7 =
  7. 7.823 × 5 =
  8. 8.931 × 8 =
  9. 9.878 × 5 =
  10. 10.151 × 9 =
  11. 11.133 × 3 =
  12. 12.514 × 5 =
  13. 13.214 × 9 =
  14. 14.307 × 4 =
  15. 15.434 × 5 =
  16. 16.185 × 7 =
  17. 17.262 × 6 =
  18. 18.818 × 9 =
  19. 19.202 × 7 =
  20. 20.271 × 3 =
  21. 21.641 × 7 =
  22. 22.671 × 6 =
  23. 23.119 × 6 =
  24. 24.917 × 6 =
  25. 25.178 × 5 =
  26. 26.951 × 5 =
  27. 27.148 × 8 =
  28. 28.627 × 4 =
  29. 29.637 × 3 =
  30. 30.734 × 8 =
  31. 31.824 × 7 =
  32. 32.797 × 6 =
  33. 33.296 × 8 =
  34. 34.181 × 8 =
  35. 35.631 × 6 =
  36. 36.731 × 7 =
  37. 37.525 × 5 =
  38. 38.641 × 9 =
  39. 39.703 × 7 =
  40. 40.704 × 9 =

Answer key

  1. 2155
  2. 528
  3. 405
  4. 3357
  5. 1876
  6. 3017
  7. 4115
  8. 7448
  9. 4390
  10. 1359
  11. 399
  12. 2570
  13. 1926
  14. 1228
  15. 2170
  16. 1295
  17. 1572
  18. 7362
  19. 1414
  20. 813
  21. 4487
  22. 4026
  23. 714
  24. 5502
  25. 890
  26. 4755
  27. 1184
  28. 2508
  29. 1911
  30. 5872
  31. 5768
  32. 4782
  33. 2368
  34. 1448
  35. 3786
  36. 5117
  37. 2625
  38. 5769
  39. 4921
  40. 6336

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