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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. All sides are equal and all of whose angles are equal. 1. can be inscribed in a circle and can be circumscribed about another circle. 2. each angle is equal to the sum of the angles divided by the number of sides 180(n-2)°/n.






2. V2/2- v2/2 - 1 (90-45-45)






3. Area= s² perimeter= 4s






4. z>y






5. Volume= 4/3?r² surface area= 4?r²






6. ? if a side < b side - then






7. A¹






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






9. x= -b + vb²-4ac/2a and x = -b - vb²-4ac/2a






10. x - (n/100)x






11. 8-15-17






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






13. Sin 60°






14. Angles directly across each other are equal






15. 1. square all choices given 2. select the closes choice that is too large and the one that is too small. 3. find the average of the two choices (not of the squares) 4. square the average - if it is greater than the original number - choose the lower






16. A pair of equations in two unknowns (each is graphed seperately and each is represented by a straight line)






17. If an equation can be put into the form y= mx +b - then






18. The whole equals






19. x < y or y> x






20. Less than 90°






21. A closed plane whose sides are straight lines. The sum of the angles is equal to 180(n-2) - where n is the number of sides.






22. One angle is equal 90° and the other two angles are equal to the sum of 90°






23. Pairs of opposite angles formed by the intersection of two straight lines. always equal to each other






24. (amount of increase/original amount) x 100






25. The distance from the center of the circle






26. The measure of an interior angle is






27. 1.each pair of opposite sides are equal 2. the diagonals bisect eachother 3. the opposite angles are equal 4. one diagonal divides it into two congruent triangles and two diagonals divides it into two pairs of congruent triangles






28. 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






29. The sum of any two sides of a triangle is greater than






30. 1/y-1/x x -y ? 0






31. The product of an odd number of negative numbers is






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






33. 180°






34. R²






35. Angles that equal 180 degrees






36. 1. round each number being added to one more place than it is being asked. 2. add the rounded numbers. 3. round off the sum to the desired number of places






37. Is the set of the first components of the ordered pairs.






38. All even numbers end in the digits of






39. ? if a side is equal to b side then - the opposite corresponding angles are






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






41. Write down every member that the two sets have in common. The intersection of the sets A and B is a set written AnB






42. Any integer is divisible by 9 - if






43. M=number of favorable ways n= total number of ways (two events occurring is the prob of the first times the prob of the second)






44. Sum of two even numbers is






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






46. Ax= by + C






47. A°






48. Sum of an odd and an even number is






49. All angles are right angles and diagonals are equal 1.each pair of opposite sides are equal 2. the diagonals bisect eachother 3. the opposite angles are equal 4. one diagonal divides it into two congruent triangles and two diagonals divides it into






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