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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. =5*10
The direction of the inequality symbol changes
8
8
50

2. =5*18
59 -049
90
84
33

3. =5*16
60
225
80
171

4. =14*14
27
196
100 -000
90

5. SQRT 64
25
8
125
Permutations ask for 'arraingements' Combinations ask for 'Groups'

6. =15*20
112
300
42
3

7. =4*15
60
20
108
7

8. =6^1
32
6
16
100

9. =4*18
72
NO
A+B (Add both probabilities)
It becomes positive

10. SQRT 4
80
2
108
Pr^2

11. If you raise a negative number to an even power - what happens to the number?
Subtract the smallest number from the greatest number
16
It becomes positive
Multiply the # of choices for each of the spots

12. =5*20
Undefined
340
256
100

13. =2^5
112
32
7
198

14. =8*9
72
1 -000
7
64

15. =7*20
3 -125
192
140
5

16. =3^5
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
25
216
243

17. =11*11
121
54
1.732050808
16

18. =7*12
84
343
96
35

19. Problem that asks you to choose a # of items to fill specific spots - when each spot is filled from a different source?
Multiply the # of choices for each of the spots
25
121
0 (any fraction with 0 on top is 0)

20. =19*20
380
56
11
132

21. =3*15
45
70
2
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

22. SQRT 256
512
6 -561
16
Combinations don't care about the order of the problems

23. SQRT 100
10
260
306
2

24. SQRT 3
60
65
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)
1.732050808

25. =4*19
27
48
76
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

26. Order of operations
5^(1/3)
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
Odd

27. =12*20
240
156
125
1 -000 -000 -000

28. Multiplying Fractions
Add their exponents (6^2 *6^3 = 6^5)
It gets smaller
169
Multiply the numerators and put the product over the product of the denominators

29. =8*17
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
99
136

30. =4*10
2
40
240
120

31. =2^1
2
7 -776
48
272

32. Adding or subtracting fractions with different denominators
2pr
Multiply both fractions to get a common denominator add or subtract as usual
8
55

33. =12*18
It gets smaller
9
Pr^2
216

34. =14*15
729
Undefined
625
210

35. 4/0 =
Undefined
16
28
Side - Side - Side^2

36. =3*18
216
343
64
54

37. =9^4
198
729
6 -561
280

38. =4*9
342
84
36
100

39. =9*18
49
162
1.732050808
Undefined

40. Does x^2 + x^3 = x^5?
56
234
NO
13

41. Area of a parallelogram?
32
51
35
Base * Height

42. =5*9
10 -000
168
45
144

43. =7*15
105
Add their exponents (6^2 *6^3 = 6^5)
45
196

44. =6*17
114
102
216
46 -656

45. =8*13
104
27
272
108

46. =7*18
306
126
36
81

47. Any number to the negative power (y) is equal to?
9
Permutations ask for 'arraingements' Combinations ask for 'Groups'
The reciprocal of the same number to the positive power (y). (eg 3^-2 = 1/(3^2) = 1/9)
91

48. SQRT 1 -296
36
380
63
8

49. =4^3
60
64
27
25

50. =7*8
56
144
25
165