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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. =4*9
100
132
36
16

2. SQRT 1 -296
It becomes positive
36
198
132

3. =10^7
3
Even
10 -000 -000
105

4. =16*16
1.732050808
256
Even
75

5. =10^3
10 -000
196
1 -000
24

6. =4*14
100
56
10 -000
625

7. Permutations: single source - order matters
68
144
126
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller

8. SQRT 25
27
16
50
5

9. SQRT 2 -401
270
49
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
Even

10. =3*14
5
100 -000
42
8

11. =8^4
4 -096
51
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
1.414213562

12. If you raise a positive fraction that is less than 1 to a power - what happens to the fraction?
60
3:4:5 -- 5:12:13 -- 7:24:25
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
It gets smaller

13. =9^3
729
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)
256
15

14. Any number to the negative power (y) is equal to?
The reciprocal of the same number to the positive power (y). (eg 3^-2 = 1/(3^2) = 1/9)
7
196
238

15. SQRT 256
16
3
208
729

16. Order of operations
4
64
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)
90

17. Does x^6 - x^2 = x^4?
112
4 -096
NO
220

18. Basic probability formula?
Number of outcomes you want/total number of possible outcomes
4
360
10 -000

19. =6*8
32
18
125
48

20. =3^4
180
266
81
It gets smaller

21. =7*15
65
247
105
85

22. =3*11
33
Odd
11
117

23. =3^1
27
3
195
81

24. SQRT 4 -096
64
65
Add their exponents (6^2 *6^3 = 6^5)
98

25. =2^2
176
3
6
4

26. =9*12
1 -024
108
84
64

27. =4*20
171
9
80
60

28. SQRT 4
2
68
48
52

29. =11*15
64
55
36
165

30. =5^4
11
625
1.732050808
126

31. =16*17
4 -096
198
272
Multiply the # of choices for each of the spots

32. =5*7
35
91
88
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)

33. What happens if you multiply or divide both sides of an inequality by a negative number?
The direction of the inequality symbol changes
128
125
64

34. SQRT 1 -000 -000
1 -000
51
42
90

35. =5*19
6
400
42
95

36. =9^4
114
6 -561
81
512

37. =12*19
1 -024
85
1 -000 -000
228

38. =12*14
512
168
64
135

39. =16*19
2pr
90
36
304

40. =3^3
256
57
27
88

41. =13*15
48
18
195
208

42. =4*5
240
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
512
20

43. =4*12
9
48
221
70

44. =11*11
72
121
20
30

45. =15*18
270
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)
9
90

46. 512^(1/3)
3
121
8
243

47. =6^3
228
5
9
216

48. Probability that A or B will happen?
24
6 -561
0 (any fraction with 0 on top is 0)
A+B (Add both probabilities)

49. =6^6
125
400
(x-y)^2
46 -656

50. =2^10
88
36
6 -561
1 -024