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GRE Math: Common Errors

Subjects : gre, math
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. How many 3-digit positive integers are even and do not contain the digit 4?






2. x^4 + x^7 =






3. A number is divisible by 6 if...






4. Can the input value of a function have more than one output value (i.e. x: y - y1)?






5. Hector invested $6000. Part was invested in account with 9% simple annual interest - and the rest in account with 7% simple annual interest. If he earned $490 in the first year of these investments - how much did he invest in each account?






6. How many multiples does a given number have?






7. Employee X is paid 19.50 per hour no matter how many a week. Employee Y earns 18 for the first 40 and 1.5 the hourly wage for every hour after that. If both earned the same amount and worked the same in one week - how many did each work?






8. x^(-y)=






9. Formula of rectangle where l increases by 20% and w decreases by 20%






10. A company places a 6-symbol code on each product. The code consists of the letter T - followed by 3 numerical digits - and then 2 consonants (Y is a conson). How many codes are possible?






11. To convert a decimal to a percent...






12. 3/8 in percent?






13. What is the 'domain' of a function?






14. What is the area of a regular hexagon with side 6?






15. Can you subtract 3sqrt4 from sqrt4?






16. Define a 'monomial'






17. The perimeter of a square is 48 inches. The length of its diagonal is:






18. What is the name for a grouping of the members within a set based on a shared characteristic?






19. If the two sides of a triangle are unequal then the longer side...






20. x^2 = 9. What is the value of x?






21. Reduce: 4.8 : 0.8 : 1.6






22. 10<all primes<20






23. a^2 + 2ab + b^2






24. What transformation occurs if point C is reflected over the x-axis and then the y-axis?






25. 8.84 / 5.2






26. What are the members or elements of a set?






27. Solve the quadratic equation ax^2 + bx + c= 0






28. Define a 'Term' -






29. Evaluate and write as a mixed number: 2/7 - 3/21 + 2 & 4/14






30. Describe the relationship between 3x^2 and 3(x - 1)^2






31. What is the surface area of a cylinder with radius 5 and height 8?






32. 1/8 in percent?






33. The objects in a set are called two names:






34. What are complementary angles?






35. A number is divisible by 4 is...






36. Which is greater? 200x^295 or 10x^294?






37. Volume for a cylinder?






38. What are congruent triangles?






39. What is a finite set?






40. How to determine percent decrease?






41. What is the ratio of the sides of an isosceles right triangle?






42. What is the side length of an equilateral triangle with altitude 6?






43. Which is greater? 27^(-4) or 9^(-8)






44. What is an exterior angle?






45. Legs 5 - 12. Hypotenuse?






46. Whats the difference between factors and multiples?






47. What is the graph of f(x) shifted right c units or spaces?






48. How to find the circumference of a circle which circumscribes a square?






49. If a=-1 and b=3 - what is the value of (4(a^3)(b^2) - 12(a^2)(b^5)) / (16(a^3)(b^2))?






50. What is a chord of a circle?







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