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GRE Math Strategies

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. Any integer is divisible by 5 if






2. 3-4-5






3. The sum of the interior angles is






4. A<x and x<b






5. 1. solve the equation or inequality 2. use ONLY the solutions which satisfy the condition required - the set of all x such that x is greater than or equal to 10 R= {x: x=10}






6. Area= l x w perimeter = (2l)(2w)






7. The length of a segment whose endpoints are (x1 -y1) and (x2 -y2)






8. x/100






9. Area= 1/2bh perimeter= a + b+ c hypotenuse= c²= b²+a²






10. Is drawn from the vertices perpendicular to the opposite sides. The lengths of these lines are useful in calculating the area of the trinagle since the area of the triangle is 1/2bh and the height and the _____are the same.






11. The case where the two equations are equivalent (just two different forms of the same mathematical relation). Any point that satisfies either of the equations - automatically satisfies both






12. y years from now






13. N= number of objects (order matters!!!) k= rate at a time nPk= n!/(n-k)! (remember to cancel common numbers)






14. The point where the line crosses the x-axis - y will always = 0 in this case






15. The percent increase from x to y (y>x)






16. Square of hypotenuse = c² = a²+b² length of hypotenuse = c= va²+vb²






17. ?






18. Any integer is divisible by 10 - if






19. ?






20. Distributive axiom - commutative axiom of addition and multiplication - associative axioms of addition and multiplication






21. Sum of an odd and an even number is






22. The angles opposite to sides that are equal in length have






23. If the each element of the domain occurs only once as a FIRST component






24. In a triangle - if ?c(interior angle in triangle) and ?d(exterior angle out of triangle) are supplmentary angles - than ?a and ?b are remote interior angles to <d - thus - a +b+c = 180 (triangle) c+d = 180 (supplementary angles)






25. Wx>wy






26. M?A = m?D m?B= m?E m?C=m?F and a/d=b/e=c/f






27. Sum of two even numbers is






28. ?






29. 8-15-17






30. (amount of decrease/original amount) x 100






31. Angles directly across each other are equal






32. Of






33. x +z > y+z






34. Is always a right angle.






35. 1-1-1 (60-60-60)






36. If b²-4ac > 0 there are






37. Are the lines that bisect and are perpendicular to each of the three sides. The point where they meet is the center of the circumscribed circle.






38. Any integer is divisible by 8 if






39. In a triangle - the greatest angles lies






40. If ?B > ?A - then






41. (x1+ x2/2) - (y1+y2/2) Each coordinate of the midpoint is equal to the average of the corresponding cordinates of the endpoints






42. V2






43. 1-v3- 2 (90-30-60)






44. x>0 and y<0 or x<0 and y >0






45. N= combinations taken (order does not matter) r= rate at a time nCr or C(n -r) = (n)!/(r)! (remember to cancel out common numbers)






46. The measure of an interior angle is






47. If two lines are parallel - the slope of one is






48. 180°






49. 1/an






50. Two tangents to a circle from the same point outside of the circle are always