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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. =3^3
27
45
323
136

2. =3*11
77
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
33
54

3. =6^2
9
72
It gets smaller
36

4. =17*18
45
36
306
72

5. =5*16
225
95
49
80

6. =3*9
Start with the number of permutations - that is the numerator(top). The Denominator is the number of combinations (eg 432*1)
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
3
27

7. =5*8
7 -776
40
144
3:4:5 -- 5:12:13 -- 7:24:25

8. =3*13
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6
5^(1/3)
128
39

9. =16*19
304
3
180
272

10. =20*20
140
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
400

11. =6^4
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
Itself
1 -296
Even

12. =7*19
221
64
133
100 -000

13. =4*13
52
72
54
1 -024

14. What is the difference between a permutation or a combination?

15. =7*8
16
56
Number of outcomes you want/total number of possible outcomes
32

16. =7^3
40
343
8
270

17. =7*12
84
64
304
80

18. =19*19
57
81
361
120

19. =3^4
100
Even
81
64

20. Area of a triangle?
Line up the decimal points and proceed as usual
90
252
(b*h)/2

21. =11*17
16
A*B (Multiply both probabilities)
32
187

22. Area of a parallelogram?
4 -096
Base * Height
112
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)

23. SQRT 729
27
6
81
8

24. =18*18
324
27
2
Even

25. =13*14
Pick the # that occurs most frequently
5
182
224

26. =12*19
3 -125
16
36
228

27. =9^3
729
36
208
Permutations ask for 'arraingements' Combinations ask for 'Groups'

28. =5*7
16
3
35
3 -125

29. Probability that A or B will happen?
Combinations don't care about the order of the problems
304
The direction of the inequality symbol changes
A+B (Add both probabilities)

30. Permutations: single source - order matters BUT only for a selection
125
84
112
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken

31. SQRT 49
7
729
3
182

32. =12*13
156
100 -000
36
18

33. SQRT 3
Add or subtract the numbers on top and keep the same denominator
39
36
1.732050808

34. =3*8
Itself
11
7 -776
24

35. Circumference of a circle?
Rate * Time = Distance (Hint: Draw a chart)
252
4
2pr

36. =6*7
324
9
343
42

37. =9^2
6
5
81
The direction of the inequality symbol changes

38. =5*6
342
30
340
100 -000

39. =9^1
238
204
9
51

40. =4*14
143
72
Odd
56

41. =1^3
80
1
729
95

42. SQRT 225
15
35
228
Odd

43. =7*18
4 -096
27
10 -000 -000 -000
126

44. =12*16
x:x^(1/3):2x
340
85
192

45. =8*17
20
512
125
136

46. =12*17
72
60
204
5

47. =8*8
256
42
10
64

48. =9*19
252
171
The reciprocal of the same number to the positive power (y). (eg 3^-2 = 1/(3^2) = 1/9)
Add or subtract the numbers on top and keep the same denominator

49. =12*14
168
126
6
1.414213562

50. =17*20
187
35
340
2

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GMAT Math Memorization

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Adobe Photoshop CS 2 - CS 3

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Adobe Photoshop CS 5 Keyboard Shortcuts

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Android Programming

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Asp.net Programming