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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. =6^4
171
81
1 -296
100 -000

2. =13*14
128
1 -000 -000 -000
182
50

3. SQRT 6 -561
1 -024
81
5^(1/3)
400

4. =19*20
24
380
120
60

5. =6^3
216
1
72
98

6. even x even =
NO
126
Even
32

7. =6^2
8
44
The direction of the inequality symbol changes
36

8. =6*10
6
247
60
9

9. =8*14
Invert (reciprocal) the second fraction and multiply
117
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
112

10. =4*14
48
1
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
56

11. =16*16
56
1.732050808
NO
256

12. 512^(1/3)
8
Line up the decimal points and proceed as usual
266
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

13. SQRT 1 -024
153
70
10
32

14. =3*8
56
288
40
24

15. Area of a circle?
108
156
208
Pr^2

16. =7*7
2pr
270
49
144

17. =9^2
3:4:5 -- 5:12:13 -- 7:24:25
81
84
100

18. =4*8
120
18
4
32

19. =4*11
112
196
44
238

20. =9^5
59 -049
33
225
81

21. Factor x^2-2xy+y^2
(x-y)^2
Even
64
It gets smaller

22. SQRT 10 -000 -000 -000
100
100 -000
102
360

23. =14*19
266
204
Pick the # that occurs most frequently
51

24. Dividing Decimals
121
247
Move the decimal to the right on both numbers until there is nothing to the right of the decimal
5

25. =14*20
300
72
4
280

26. =16*19
220
Combinations don't care about the order of the problems
51
304

27. SQRT 36
208
260
64
6

28. =15*17
143
285
Combinations don't care about the order of the problems
255

29. 27^(1/3)
68
3
255
Odd

30. =7*19
204
133
Invert (reciprocal) the second fraction and multiply
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)

31. =11*20
49
220
76
240

32. =7*10
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
70
208
Odd

33. how do you find the range of a set of numbers?
1 -024
Add or subtract the numbers on top and keep the same denominator
Subtract the smallest number from the greatest number
104

34. SQRT 121
2pr
One (1)
Will = 1 - Won't
11

35. =4*5
35
20
108
180

36. =7^4
27
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)
2 -401
20

37. =11*13
8
143
10 -000 -000
187

38. SQRT 100
9
10
108
128

39. =5*15
240
32
75
238

40. 125^(1/3)
729
5
180
100 -000 -000

41. =7*16
342
112
228
144

42. =12*17
216
3 -125
204
225

43. =5*9
143
It gets smaller
42
45

44. =3*14
42
54
Undefined
1

45. even x odd =
512
4
238
Even

46. =6*17
102
70
90
27

47. =7*9
8
343
63
It gets smaller

48. 4/0 =
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
2pr
Undefined
152

49. =5^5
Permutations ask for 'arraingements' Combinations ask for 'Groups'
x:x^(1/3):2x
3 -125
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)

50. If you raise a negative number to an even power - what happens to the number?
NO
45
It becomes positive
95