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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. =6*20
44
Pick the # that occurs most frequently
78
120

2. =5*18
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)
10 -000
90
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)

3. =6*19
0 (any fraction with 0 on top is 0)
114
24
252

4. =2^10
120
54
1 -024
10 -000

5. 0/1 =
121
0 (any fraction with 0 on top is 0)
48
6

6. =9*14
Even
125
64
126

7. =7*18
324
64
126
81

8. 64^(1/3)
7
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
4
60

9. =10^7
12
Pick the # that occurs most frequently
10 -000 -000
60

10. =7^1
7
33
105
1 -024

11. =5*12
85
16
60
252

12. SQRT 36
It gets smaller
6
228
7 -776

13. =9*13
8
117
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
The reciprocal of the same number to the positive power (y). (eg 3^-2 = 1/(3^2) = 1/9)

14. =9*18
162
32
NO
3

15. SQRT 121
Permutations ask for 'arraingements' Combinations ask for 'Groups'
114
11
NO

16. Does x^6 - x^2 = x^4?
625
42
32
NO

17. SQRT 169
13
125
1.732050808
204

18. =15*16
Amount of increase/original amount = x/100 (Then cross multiply to find x)
240
Even
6

19. =5*5
Itself
285
126
25

20. =12*15
180
117
5^(1/3)
24

21. SQRT 4
2
Undefined
210
8

22. =17*20
228
12
340
171

23. =20^2
400
98
64
255

24. SQRT 100
180
A+B (Add both probabilities)
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)
10

25. =11*15
3
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)
165
1.732050808

26. =7*11
77
30
135
Side - Side - Side^2

27. Circumference of a circle?
2pr
512
625
Even

28. =11*17
187
126
13
Subtract the smallest number from the greatest number

29. SQRT 400
84
20
7 -776
10 -000

30. =3*5
32
15
30
243

31. =5*19
It gets smaller
95
11
512

32. Basic probability formula?
Start with the number of permutations - that is the numerator(top). The Denominator is the number of combinations (eg 432*1)
Number of outcomes you want/total number of possible outcomes
13
247

33. How do you find the mode of a set of numbers?
176
112
168
Pick the # that occurs most frequently

34. 30:60:90 Right Triangle (Lenghts)
Move the decimal to the right on both numbers until there is nothing to the right of the decimal
342
7
x:x^(1/3):2x

35. =6*13
78
160
96
119

36. SQRT 3
729
1.732050808
25
512

37. Any number to the negative power (y) is equal to?
6
15
81
The reciprocal of the same number to the positive power (y). (eg 3^-2 = 1/(3^2) = 1/9)

38. =8^3
143
225
512
NO

39. =2^8
42
240
240
256

40. SQRT 225
1 -000 -000 -000
132
9
15

41. =6*16
63
NO
96
15

42. =6^3
Start with the number of permutations - that is the numerator(top). The Denominator is the number of combinations (eg 432*1)
216
288
49

43. =5*9
45
Start with the number of permutations - that is the numerator(top). The Denominator is the number of combinations (eg 432*1)
90
16

44. =2^6
512
50
64
One (1)

45. =4*19
9
120
76
64

46. SQRT 2
It gets smaller
323
1.414213562
121

47. =18*18
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
324
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
169

48. =8*12
96
135
5
285

49. =5*15
75
56
255
7

50. =9^4
2 -401
Will = 1 - Won't
119
6 -561

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