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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. SQRT 1 -296
0 (any fraction with 0 on top is 0)
36
10 -000
210

2. SQRT 25
Rate * Time = Distance (Hint: Draw a chart)
60
5
105

3. =18*18
324
104
6
84

4. SQRT 16
4
Add their exponents (6^2 *6^3 = 6^5)
3 -125
It becomes positive

5. =5*8
40
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
64
1.732050808

6. SQRT 9
285
55
3
243

7. =8^4
2
51
4 -096
81

8. SQRT 4 -096
64
225
104
28

9. SQRT 4
NO
2
288
135

10. =9^3
144
256
27
729

11. SQRT 3
1.732050808
1
126
4

12. =5*15
306
3 -125
75
15

13. =2^2
Move the decimal to the right on both numbers until there is nothing to the right of the decimal
45
2pr
4

14. =4*6
114
144
49
24

15. =14*18
54
400
10 -000
252

16. =8^1
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)
8
380
90

17. =6^1
6
3:4:5 -- 5:12:13 -- 7:24:25
It gets smaller
A+B (Add both probabilities)

18. =7*18
84
133
126
729

19. SQRT 2
60
70
1.414213562
7

20. =15*17
255
Pick the # that occurs most frequently
260
64

21. =9*20
182
180
54
4

22. =5*16
Even
323
80
3

23. Key to percent increase/decrease
Amount of increase/original amount = x/100 (Then cross multiply to find x)
112
72
100

24. =6*6
100
36
156
0 (any fraction with 0 on top is 0)

25. =10^4
30
2 -401
100 -000
10 -000

26. =5^2
25
100
210
288

27. =3^5
1 -000 -000
243
Will = 1 - Won't
25

28. =5*18
3:4:5 -- 5:12:13 -- 7:24:25
Multiply both fractions to get a common denominator add or subtract as usual
90
108

29. even x odd =
The direction of the inequality symbol changes
64
NO
Even

30. =4^3
64
42
91
288

31. =4*20
196
289
80
81

32. Permutations: single source - order matters BUT only for a selection
180
64
1 -000
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken

33. =10^3
It becomes positive
70
1 -000
85

34. Does x^2 + x^3 = x^5?
198
NO
154
112

35. =7*8
56
27
64
64

36. If you raise a negative number to an odd power - what happens to the number?
100 -000
It gets smaller
Even
80

37. When is a number divisible by 3?
81
64
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
36

38. =9^3
102
729
Combinations don't care about the order of the problems
64

39. =4^3
102
342
48
64

40. =11*15
105
165
140
48

41. =6*13
30
289
78
198

42. =9*15
135
16
46 -656
32

43. =5*11
27
112
55
117

44. =7*19
133
Even
5
285

45. =11*19
100
182
209
25

46. =2^4
16
15
49
224

47. =15*20
96
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
35
300

48. =3^3
90
32
27
Odd

49. =3*3
125
162
9
76

50. =10^2
36
100
400
187