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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. =11*15
32
729
59 -049
165

2. =7*17
49
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
8
119

3. =9*9
48
16
81
0 (any fraction with 0 on top is 0)

4. =5^2
25
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6
136
512

5. =7*19
72
2
2
133

6. =17*18
6
306
343
209

7. How do you find the slope of a line?
136
Difference in the y-coordinates over the difference in the x coodinates
81
90

8. =4*15
625
60
121
270

9. =2^6
224
0 (any fraction with 0 on top is 0)
234
64

10. =9*18
210
162
16
125

11. =4^2
152
88
16
224

12. =8*19
15
152
(b*h)/2
100 -000 -000

13. When is a number divisible by 6?
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
6
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)
133

14. =10^3
1 -000
Even
143
16

15. =5*18
90
27
4
11

16. =6^2
306
36
256
5

17. =6*17
256
18
96
102

18. =4^3
4 -096
240
64
Multiply the # of choices for each of the spots

19. How do you tell if it's a permutation or combination?

20. Exponents - Dividing numbers with same base
It gets smaller
198
20
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)

21. =14*19
300
32
266
288

22. =9^2
49
361
81
133

23. =7*16
112
1 -000 -000 -000
90
8

24. Does x^6 - x^2 = x^4?
160
NO
288
1

25. =8*9
16
2pr
187
72

26. 4/0 =
400
192
Undefined
56

27. =9*12
4 -096
108
Amount of increase/original amount = x/100 (Then cross multiply to find x)
4

28. Odds that at least one thing will happen?

29. =6^3
40
64
Will = 1 - Won't
216

30. Distance Formula?
196
117
Rate * Time = Distance (Hint: Draw a chart)
1 -000 -000

31. =8^2
The reciprocal of the same number to the positive power (y). (eg 3^-2 = 1/(3^2) = 1/9)
1
64
16

32. =6*15
91
343
361
90

33. =4*11
64
44
Multiply both fractions to get a common denominator add or subtract as usual
24

34. =6*12
72
2
5^(1/3)
2 -401

35. 0/1 =
Line up the decimal points and proceed as usual
105
Base * Height
0 (any fraction with 0 on top is 0)

36. =4*4
NO
16
12
24

37. If you raise a positive fraction that is less than 1 to a power - what happens to the fraction?
240
It gets smaller
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
90

38. =3*11
100 -000 -000
300
33
152

39. =4*17
182
35
112
68

40. =3^5
243
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
2
729

41. =2^5
192
81
99
32

42. =12*19
165
180
228
187

43. =11*16
8
176
63
68

44. =2^1
2
44
4
Will = 1 - Won't

45. Order of operations
100
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)
59 -049
182

46. =11*11
98
27
121
1 -024

47. SQRT 100 -000 -000
59 -049
3
15
10 -000

48. Any number to the 0 power is?
3:4:5 -- 5:12:13 -- 7:24:25
209
195
One (1)

49. =6^3
7
360
216
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)

50. =9^3
45
2
2
729