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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. What is a piecewise equation?






2. To multiply a number by 10^x






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






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






5. Surface area for a cylinder?






6. What are the integers?






7. Simplify 9^(1/2) X 4^3 X 2^(-6)?






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






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






10. Define an 'expression'.






11. Can you simplify sqrt72?






12. How many sides does a hexagon have?






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






14. 40 < all primes<50






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






16. What is the ratio of the sides of a 30-60-90 triangle?






17. 1/8 in percent?






18. a^2 - b^2 =






19. For similar triangles - the ratio of their corresponding sides is 2:3. What is the ratio of their areas?






20. x^6 / x^3






21. Whats the difference between factors and multiples?






22. What are complementary angles?






23. Formula for the area of a circle?






24. a^2 - b^2






25. A number is divisible by 4 is...






26. 5 bakeries sell an average of 300 muffins per bakery per day. If 2 stop making muffins but the total muffins sold stays the same - what is the average of muffins per bakery sold among the remaining?






27. What is the 'Solution' for a set of inequalities.






28. A cylinder has a surface area of 22pi. If the cylinder has a height of 10 - what is the radius?






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






30. 413.03 x 10^(-4) =






31. There are 10 finalists for the school spelling bee. A first - second - and third place trophy will be awarded. How many different people can get the three prizes?






32. What are congruent triangles?






33. 5/8 in percent?






34. 7/8 in percent?






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






36. Ratio of ages of Anna and Emma is 3:5 and of Emma and Nicolas is 3:5. What is the ratio of Anna to Nicholas' ages?






37. 1/6 in percent?






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






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






40. 30< all primes<40






41. Simplify the expression (p^2 - q^2)/ -5(q - p)






42. Simplify (a^2 + b)^2 - (a^2 - b)^2






43. What are the smallest three prime numbers greater than 65?






44. a^0 =






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






46. 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))?






47. (12sqrt15) / (2sqrt5) =






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






49. What percent of 40 is 22?






50. To convert a decimal to a percent...







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