Test your basic knowledge |

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. Which quadrant is the upper right hand?






2. What are the rational numbers?






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






4. 1/2 divided by 3/7 is the same as






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






7. What is the intersection of A and B?






8. 1/6 in percent?






9. To convert a decimal to a percent...






10. What are 'Supplementary angles?'






11. Length of an arc of a circle?






12. If you have a set of n objects - but you only want to order k of them - what formula do you use to determine the number of permutations?






13. Order of quadrants:






14. What is the 'union' of A and B?






15. What are complementary angles?






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






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






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






19. If an inequality is multiplied or divided by a negative number....






20. Formula to find a circle'S circumference from its radius?






21. Legs 5 - 12. Hypotenuse?






22. What is the order of operations?






23. 1:sqrt3:2 is the ratio of the sides of what kind of triangle?






24. Simplify the expression [(b^2 - c^2) / (b - c)]






25. 70 < all primes< 80






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






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






28. 1/8 in percent?






29. What does scientific notation mean?






30. 10<all primes<20






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






32. a^2 - b^2 =






33. (-1)^3 =






34. 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))?






35. Is 0 even or odd?






36. What is a set with no members called?






37. 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?






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






39. What is the 'Restricted domain of a function'?






40. What is the formula for compounded interest?






41. Define an 'expression'.






42. Which is greater? 64^5 or 16^8






43. How many multiples does a given number have?






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






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






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






47. 200 <_ x <_ 300. How many values of x are divisible by 5 & 8?






48. Volume for a cylinder?






49. sqrt 2(sqrt 6)=






50. What is it called when a point is reflected to the quadrant opposite it (i.e. I to III or II to IV)?