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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. Exponents - Multiplying numbers with same base
100
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
140
Add their exponents (6^2 *6^3 = 6^5)

2. Another way to write cube root 5
165
27
Invert (reciprocal) the second fraction and multiply
5^(1/3)

3. =11*17
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
64
Add their exponents (6^2 *6^3 = 6^5)
187

4. SQRT 2 -401
144
234
Difference in the y-coordinates over the difference in the x coodinates
49

5. Adding or subtracting fractions with different denominators
128
24
36
Multiply both fractions to get a common denominator add or subtract as usual

6. =3*20
60
42
8
198

7. Does (x^2 + y^2 + z^2)/(x^2 + y^2) = z^2?
30
NO
18
5

8. =8*19
9
64
152
143

9. =10^2
65
100
7
8

10. =10^9
Even
72
1 -000 -000 -000
168

11. =1^3
80
320
1
343

12. Order of operations
240
Multiply both fractions to get a common denominator add or subtract as usual
216
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)

13. =11*13
143
108
3
81

14. =10^6
1 -000 -000
(b*h)/2
1
81

15. 216^(1/3)
7 -776
6
4
84

16. =5^5
100
3 -125
59 -049
24

17. =8*9
243
72
360
121

18. =9*20
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
55
260
180

19. =7*17
52
119
143
10 -000

20. =6^3
216
120
10
50

21. 4/0 =
153
128
Undefined
108

22. =7^3
121
72
343
9

23. =5*16
36
3:4:5 -- 5:12:13 -- 7:24:25
80
20

24. 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
153
80
216

25. =8^3
247
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)
512
56

26. =19*20
380
72
210
119

27. =6*11
168
66
Odd
2pr

28. =2^6
Odd
64
59 -049
125

29. Any number to the negative power (y) is equal to?
Pick the # that occurs most frequently
238
90
The reciprocal of the same number to the positive power (y). (eg 3^-2 = 1/(3^2) = 1/9)

30. =6^1
49
132
6
104

31. =13*18
100 -000 -000
126
91
234

32. =9*15
125
Difference in the y-coordinates over the difference in the x coodinates
135
25

33. =9*14
126
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
195
208

34. =5*5
25
It gets smaller
12
81

35. =9*12
340
165
156
108

36. 8^(1/3)
133
10 -000 -000 -000
2
125

37. =16*20
Undefined
A+B (Add both probabilities)
320
7

38. =13*14
256
85
512
182

39. =15^2
81
35
16
225

40. =5*19
3
85
77
95

41. =4*9
81
36
Pr^2
126

42. =3*6
18
10 -000 -000
238
72

43. SQRT 25
NO
42
16
5

44. =3*11
81
10 -000 -000 -000
272
33

45. Does x^2 + x^3 = x^5?
100 -000
NO
18
88

46. =18*18
55
324
112
182

47. SQRT 400
153
2
208
20

48. =2^2
(x-y)^2
6 -561
11
4

49. =5*10
153
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6
289
50

50. Multiplying Fractions
Multiply the numerators and put the product over the product of the denominators
64
77
224