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GMAT Math Memorization

Subjects : gmat, 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. Exponents - Raising a power to a power
5
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6
121
Will = 1 - Won't

2. =7*15
105
266
7
Itself

3. =10^1
Pick the # that occurs most frequently
64
10
270

4. =3*12
49
729
1.414213562
36

5. =4*18
72
32
120
306

6. =15*15
Add their exponents (6^2 *6^3 = 6^5)
36
Number of outcomes you want/total number of possible outcomes
225

7. =3^3
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
45
27
220

8. =2^2
240
4
144
NO

9. =6^6
2pr
15
46 -656
Difference in the y-coordinates over the difference in the x coodinates

10. =4^3
91
48
64
5

11. =8*11
Even
153
88
4 -096

12. 0/1 =
80
156
35
0 (any fraction with 0 on top is 0)

13. =3*5
15
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
Even
7 -776

14. =12*15
75
180
100
133

15. =6*14
64
84
247
64

16. =6^2
7
128
512
36

17. =13*14
18
182
20
27

18. 4/0 =
36
Multiply both fractions to get a common denominator add or subtract as usual
Undefined
Will = 1 - Won't

19. =12*20
240
7 -776
8
238

20. SQRT 121
Multiply the # of choices for each of the spots
11
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)
16

21. SQRT 729
27
42
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
182

22. =7*8
51
56
1 -000
108

23. =4*20
Odd
80
13
33

24. =5^3
125
360
72
2

25. Right Isosceles triangle (lengths)?
24
Side - Side - Side^2
208
270

26. Does (x^2 + y^2 + z^2)/(x^2 + y^2) = z^2?
247
NO
3
9

27. =2^7
90
144
9
128

28. =6*17
120
65
13
102

29. =11*11
5
121
60
15

30. =7*16
105
54
112
Pr^2

31. Factor x^2-2xy+y^2
54
Even
Multiply the numerators and put the product over the product of the denominators
(x-y)^2

32. =7*11
112
108
70
77

33. Does x^2 + x^3 = x^5?
NO
Undefined
45
8

34. =7*20
140
112
Add or subtract the numbers on top and keep the same denominator
216

35. Any number to the negative power (y) is equal to?
64
1 -024
98
The reciprocal of the same number to the positive power (y). (eg 3^-2 = 1/(3^2) = 1/9)

36. =19*19
361
400
35
46 -656

37. =25^2
280
196
625
y=mx+b where b is the y-intercept (the point which crosses the y-axis) m is the slope of the line - and x & y are the coordinates of some point on that line

38. Equation for a line?
y=mx+b where b is the y-intercept (the point which crosses the y-axis) m is the slope of the line - and x & y are the coordinates of some point on that line
It gets smaller
It becomes positive
70

39. SQRT 256
Subtract the smallest number from the greatest number
40
16
40

40. =3*19
57
10 -000 -000 -000
Odd
x:x^(1/3):2x

41. how do you find the range of a set of numbers?
Subtract the smallest number from the greatest number
144
16
51

42. =3*4
12
16
156
729

43. How do you find the median of a set of numbers?
216
228
2
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s

44. =4*13
30
1 -000 -000
6 -561
52

45. =6*20
81
120
7
247

46. =12*18
9
216
8
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)

47. =9*13
260
117
11
400

48. =8*14
Pick the # that occurs most frequently
Add their exponents (6^2 *6^3 = 6^5)
Multiply the numerators and put the product over the product of the denominators
112

49. SQRT 10 -000 -000 -000
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
100 -000
125
119

50. odd + odd =
46 -656
Even
6
256