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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 are the integers?






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






3. What is the slope of a horizontal line?






4. What are the irrational numbers?

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5. Can the input value of a function have more than one output value (i.e. x: y - y1)?






6. What percent of 40 is 22?






7. Which quadrant is the upper right hand?






8. a^2 - b^2






9. To multiply a number by 10^x






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






11. 10^6 has how many zeroes?






12. What is a subset?






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






14. What is a parabola?






15. Evaluate 4/11 + 11/12






16. (-1)^2 =






17. Nine coins are tossed simultaneously. In how many of the outcomes will the fourth coin tossed show heads?






18. 413.03 x 10^(-4) =






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






20. What is an arc of a circle?






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






22. Which quandrant is the lower right hand?






23. What number between 70 & 75 - inclusive - has the greatest number of factors?






24. What is a set with no members called?






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






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. Define a 'Term' -






28. What is the order of operations?






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






30. What is the slope of a vertical line?

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






32. Evaluate (4^3)^2






33. There are 10 finalists for the school spelling bee. A first - second - and third place trophy will be awarded. In how many ways can the judges award the 3 prizes?






34. T or F? Given d -e &f =/ 0 - [(d^3)e(f^5)] / 2d(e^3) / [3(d^2)(e^3)(f^7)] / [6(e^5)(f^2)]?






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






36. What is a central angle?






37. What is the empty set?






38. 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))?






39. A number is divisible by 6 if...






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






41. What is the 'Range' of a series of numbers?






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






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






44. If 10800 is invested at a simple interest rate of 4% - what is the value of the investment after 18 months?






45. Pi is a ratio of what to what?

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46. 10<all primes<20






47. 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?






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






49. 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?






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






Can you answer 50 questions in 15 minutes?



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