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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 the slope of a horizontal line?






2. Simplify 4sqrt21 X 5sqrt2 / 10sqrt7






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






4. (6sqrt3) x (2sqrt5) =






5. Evaluate 4/11 + 11/12






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






7. Legs 5 - 12. Hypotenuse?






8. What are the integers?






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






10. How many sides does a hexagon have?






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






12. Convert 0.7% to a fraction.






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






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






15. A number is divisible by 4 is...






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






17. Find the surface area of a cylinder with radius 3 and height 12.






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






19. Define an 'expression'.






20. 6w^2 - w - 15 = 0






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






22. Which quadrant is the upper left hand?






23. From a box of 12 candles - you are to remove 5. How many different sets of 5 candles could you remove?






24. Which quadrant is the lower left hand?






25. 413.03 x 10^(-4) =






26. What are 'Supplementary angles?'






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






28. Area of a triangle?






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






30. 1/6 in percent?






31. What is the third quartile of the following data set: 44 - 58 - 63 - 63 - 68 - 70 - 82






32. Formula for the area of a sector of a circle?






33. Length of an arc of a circle?






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






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






36. a^2 + 2ab + b^2






37. Define a 'Term' -






38. What is the ratio of the surface area of a cube with an edge of 10 to the surface area of a rectangular solid with dimensions 2 - 4 - and 6?






39. 3/8 in percent?






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






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






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






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






44. Evaluate and write as a mixed number: 2/7 - 3/21 + 2 & 4/14






45. 40 < all primes<50






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






47. a^0 =






48. 25^(1/2) or sqrt. 25 =






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






50. What are the roots of the quadrinomial x^2 + 2x + 1?