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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. In a triangle inscribed inside a circle - where the diameter is one side of the triangle - which angle is largest?






2. x^4 + x^7 =






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






4. Describe the relationship between the graphs of x^2 and (1/2)x^2






5. What is the set of elements found in both A and B?






6. What is the coefficient of the x^2 term in the product of (x + 1)(x + 2)(x -1)?






7. 40 < all primes<50






8. When does a function automatically have a restricted domain (2)?






9. Area of a triangle?






10. (6sqrt3) x (2sqrt5) =






11. 50 < all primes< 60






12. How to find the diagonal of a rectangular solid?






13. A triangle is inscribed in a semi circle with legs 5 and 12. What is the circumfermence of the semicircle?






14. Simplify 4sqrt21 X 5sqrt2 / 10sqrt7






15. Order of quadrants:






16. Write 10 -843 X 10^7 in scientific notation






17. a^2 + 2ab + b^2






18. What is the 'Range' of a series of numbers?






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






20. The slope of a line perpendicular to (a/b)?






21. (a^-1)/a^5






22. 200 <_ x <_ 300. How many values of x are divisible by 5 & 8?






23. 5/8 in percent?






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






25. What is the formula for computing simple interest?






26. What is the 'Solution' for a system of linear equations?






27. What is the absolute value function?






28. What is a set with no members called?






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






30. What is the common monomial factor in the expression 4(c^3)d - (c^2)(d^2) + 2cd?






31. Convert 0.7% to a fraction.






32. 60 < all primes <70






33. Surface area for a cylinder?






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






35. a^0 =






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






37. 1:sqrt3:2 is the ratio of the sides of what kind of triangle?






38. Formula to find a circle'S circumference from its diameter?






39. To multiply a number by 10^x






40. 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?






41. Evaluate 4/11 + 11/12






42. x^(-y)=






43. What is the formula for compounded interest?






44. When the 'a' in the parabola is negative...






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






46. What are 'Supplementary angles?'






47. What percent of 40 is 22?






48. The four angles around a point measure y - 2y - 35 and 55 respectively. What is the value of y?






49. Can the output value of a function have more than one input value?






50. Legs 5 - 12. Hypotenuse?