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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. Odds that something doesn't happen?

2. =25^2
104
625
272
9

3. Probability that A or B will happen?
49
A+B (Add both probabilities)
120
39

4. SQRT 100 -000 -000
68
10 -000
342
24

5. SQRT 10 -000
100
5^(1/3)
64
51

6. =8*9
72
9
5
96

7. =3^3
27
136
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

8. Area of a circle?
Pr^2
16
135
64

9. =9*19
7
171
4
20

10. =4*7
48
28
The reciprocal of the same number to the positive power (y). (eg 3^-2 = 1/(3^2) = 1/9)
343

11. =13*20
260
60
40
Ignor decimal points and multiply the two numbers - then count the digits to the right of the decimal points in the original numbers and place the decimal so there are the same number of digits to the right of the decimal

12. =9*13
117
32
56
380

13. =8^3
512
10 -000 -000 -000
27
104

14. 512^(1/3)
5
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
280
8

15. =4^4
Odd
49
27
256

16. =6^2
10 -000
64
64
36

17. =9^5
59 -049
512
216
85

18. =9*16
144
10 -000
100
119

19. How do you find the slope of a line?
Difference in the y-coordinates over the difference in the x coodinates
280
256
144

20. =9^3
10
729
15
(x-y)^2

21. =16*19
266
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
304
75

22. =12*14
112
168
64
126

23. =2^3
153
28
105
8

24. =3*14
42
256
182
64

25. =7*18
154
85
126
9

26. =3^3
27
100
240
Won't = 1 - Will

27. =2^7
114
343
128
5

28. =10^4
98
154
6
10 -000

29. =6^4
1 -296
36
Start with the number of permutations - that is the numerator(top). The Denominator is the number of combinations (eg 432*1)
216

30. =4*12
255
85
48
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)

31. =8*20
144
160
Number of outcomes you want/total number of possible outcomes
45

32. =5^3
78
7
125
(b*h)/2

33. =7^1
100 -000 -000
224
36
7

34. =18*20
360
171
6 -561
144

35. =16*18
204
NO
288
4 -096

36. 8^(1/3)
2
105
144
59 -049

37. =5*10
1.732050808
Even
234
50

38. 0/1 =
10 -000 -000 -000
33
0 (any fraction with 0 on top is 0)
100

39. =14*14
216
0 (any fraction with 0 on top is 0)
196
Base * Height

40. =6*9
45
2
Base * Height
54

41. =11*20
1.414213562
45
220
30

42. SQRT 121
40
11
84
3

43. =10^7
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
90
243
10 -000 -000

44. =9*20
180
169
27
6

45. =9*12
108
3:4:5 -- 5:12:13 -- 7:24:25
96
70

46. =4*20
80
1 -000
324
169

47. =13*17
221
4
280
60

48. =2^2
5
60
It becomes positive
4

49. SQRT 2
512
1.414213562
64
20

50. Does x^6 - x^2 = x^4?
25
Number of outcomes you want/total number of possible outcomes
25
NO