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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. Factor a^2 + 2ab + b^2






2. 5/8 in percent?






3. 8.84 / 5.2






4. When the 'a' in a parabola is positive....






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






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






7. 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?






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






9. 413.03 x 10^(-4) =






10. What is a subset?






11. 1:1:sqrt2 is the ratio of the sides of what kind of triangle?






12. How many 3-digit positive integers are even and do not contain the digit 4?






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






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






15. What is a chord of a circle?






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






17. Evaluate (4^3)^2






18. Surface area for a cylinder?






19. What does the graph (x+2)^2 + (y+2)^2 = 9 look like?






20. Which quandrant is the lower right hand?






21. Circumference of a circle?






22. What is an isoceles triangle?






23. Evaluate 3& 2/7 / 1/3






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






25. In similar hexagons - the ratio of the areas is 16:25. What is the ratio of their corresponding sides?






26. Legs 5 - 12. Hypotenuse?






27. 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?






28. (12sqrt15) / (2sqrt5) =






29. Which quadrant is the lower left hand?






30. Length of an arc of a circle?






31. How to find the area of a sector?






32. a^2 - 2ab + b^2






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






34. What does the graph x^2 + y^2 = 64 look like?






35. 3/8 in percent?






36. What is a minor arc?

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37. a^0 =






38. What are complementary angles?






39. To multiply a number by 10^x






40. In a triangle where the two legs are 4 and 3 - what is the value of a line directly intersecting the middle coming from the meeting point of the two legs?






41. How to determine percent decrease?






42. sqrt 2(sqrt 6)=






43. What is the order of operations?






44. 20<all primes<30






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






46. 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?






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






48. A brick with dimensions 10. 15 and 25 weighs 1.5 kg. A second brick (same density) has dimensions 12 - 18 - and 30. What is the weight of the second brick?






49. What is the measure of an exterior angle of a regular pentagon?






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