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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. =10^1
8
7
49
10

2. =2^8
153
256
64
The reciprocal of the same number to the positive power (y). (eg 3^-2 = 1/(3^2) = 1/9)

3. 0/1 =
729
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6
256
0 (any fraction with 0 on top is 0)

4. =8*12
Subtract the smallest number from the greatest number
4
36
96

5. SQRT 121
Undefined
36
11
Subtract the smallest number from the greatest number

6. Right Isosceles triangle (lengths)?
198
Side - Side - Side^2
56
78

7. =3*17
256
51
NO
Combinations don't care about the order of the problems

8. SQRT 4 -096
18
If it is divisible by both 2 and 3 (318 is because it is even and the sum of 3+1+8 is divisible by 3)
117
64

9. =7*19
238
133
64
10 -000 -000 -000

10. =6^2
256
36
209
323

11. =8*20
160
104
0 (any fraction with 0 on top is 0)
51

12. When is a number divisible by 4?

13. =4^5
It gets smaller
1 -024
4 -096
195

14. How do you find the slope of a line?
Difference in the y-coordinates over the difference in the x coodinates
512
57
Number of outcomes you want/total number of possible outcomes

15. =4*14
16
126
256
56

16. =8*9
72
180
Odd
102

17. =8^1
56
27
196
8

18. Circumference of a circle?
54
NO
10
2pr

19. =5*15
9
75
Even
(b*h)/2

20. 30:60:90 Right Triangle (Lenghts)
16
Won't = 1 - Will
30
x:x^(1/3):2x

21. =4*9
60
36
380
64

22. =9*16
144
102
(b*h)/2
243

23. =3^3
119
24
192
27

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

25. =15*20
35
Subtract the smallest number from the greatest number
300
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6

26. =4*15
60
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
5^(1/3)
625

27. =13*18
80
Subtract the smallest number from the greatest number
234
272

28. =8^4
59 -049
It becomes positive
4 -096
100

29. =2^2
112
121
4
60

30. =12*16
128
60
220
192

31. =10^8
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
20
A*B (Multiply both probabilities)
100 -000 -000

32. If you raise a negative number to an even power - what happens to the number?
It becomes positive
70
Start with the number of permutations - that is the numerator(top). The Denominator is the number of combinations (eg 432*1)
168

33. =3*15
1.732050808
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6
2pr
45

34. 64^(1/3)
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
Won't = 1 - Will
4
16

35. =14*19
266
x:x^(1/3):2x
133
256

36. =5*17
It becomes positive
12
192
85

37. =3*11
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)
33
10
42

38. =17*18
243
(x-y)^2
143
306

39. =15*17
Won't = 1 - Will
255
135
208

40. =7*12
512
100
160
84

41. =14*20
(b*h)/2
24
280
64

42. SQRT 100
10
28
70
64

43. =9*18
76
162
195
95

44. =8*15
Odd
Even
Add or subtract the numbers on top and keep the same denominator
120

45. =10^6
306
36
1 -000 -000
100

46. even x even =
Even
It becomes positive
88
343

47. =11*19
210
168
80
209

48. =6*15
16
3
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
90

49. odd x odd =
Odd
1.414213562
512
729

50. =7*10
Side - Side - Side^2
70
Multiply the numerators and put the product over the product of the denominators
2