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GRE Math: Common Errors

Subjects : gre, math
  • Answer 50 questions in 15 minutes.
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  • 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 chord of a circle?

2. The larger the absolute value of the slope...

3. If Madagascar'S exports totaled 1.3 billion in 2009 - and 4% came from China - what was the value in millions of the country'S exports to China?

4. What is an isoceles triangle?

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

6. 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?

7. (-1)^3 =

8. 40 < all primes<50

9. What are 'Supplementary angles?'

10. 10^6 has how many zeroes?

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

12. Which quandrant is the lower right hand?

13. Define a 'Term' -

14. If the 80th percentile of the measurements is 72degrees - about how many measurments are between 69 degrees and 72 degrees? Round your answer to the nearest tenth

15. What is the intersection of A and B?

16. Legs 5 - 12. Hypotenuse?

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

18. How to determine percent decrease?

19. 7/8 in percent?

20. Simplify 4sqrt21 X 5sqrt2 / 10sqrt7

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

22. 8.84 / 5.2

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

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

25. Define an 'expression'.

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

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

28. Legs: 3 - 4. Hypotenuse?

29. 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?

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

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

32. 1:1:sqrt2 is the ratio of the sides of what kind of triangle?

33. What is the absolute value function?

34. (6sqrt3) x (2sqrt5) =

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

36. Suppose you have a set of n objects - and you want to select k of them - but the order doesn'T matter. What formula do you use to determine the number of combinations of n objects taken k at a time?

37. Max and Min lengths for a side of a triangle?

38. 50 < all primes< 60

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

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

41. Whats the difference between factors and multiples?

42. What is a major arc?

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

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

45. 70 < all primes< 80

46. Which quadrant is the upper left hand?

47. 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?

48. 2sqrt4 + sqrt4 =

49. 25^(1/2) or sqrt. 25 =

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