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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
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)
209
10 -000 -000 -000
165

2. =15*18
270
45
266
NO

3. =9*12
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
75
108
x:x^(1/3):2x

4. =4*18
125
135
1.414213562
72

5. =12*18
4
2 -401
216
160

6. =9*17
Number of outcomes you want/total number of possible outcomes
153
512
36

7. =4*5
Even
20
10 -000
320

8. =5*10
Even
50
105
64

9. =8^3
198
64
512
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)

10. =6*20
126
120
13
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

11. =9^5
3
59 -049
49
144

12. SQRT 25
192
5
152
512

13. =3*15
95
45
100 -000
228

14. =6^4
1 -296
90
10 -000
1 -000

15. =5^3
125
209
Won't = 1 - Will
12

16. =5*18
90
59 -049
88
108

17. =7*12
243
54
80
84

18. =9*20
180
8
95
1.414213562

19. =8*17
136
6
5
36

20. =3*9
27
343
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
48

21. =9^2
120
125
81
90

22. Dividing Fractions
100
80
Undefined
Invert (reciprocal) the second fraction and multiply

23. =7*8
56
10
140
27

24. =3*17
85
51
300
152

25. =16*18
288
220
324
144

26. SQRT 1 -296
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
90
153
36

27. =4^1
120
729
The reciprocal of the same number to the positive power (y). (eg 3^-2 = 1/(3^2) = 1/9)
4

28. Probability that A or B will happen?
A+B (Add both probabilities)
4
4
196

29. =3*5
36
15
140
54

30. =9^4
117
210
6 -561
360

31. =10^5
30
285
300
100 -000

32. =6^1
125
6
1 -000 -000
Side - Side - Side^2

33. =9*16
It becomes positive
252
144
135

34. Adding or subtracting fractions with different denominators
Multiply both fractions to get a common denominator add or subtract as usual
27
625
64

35. =4*13
52
15
343
25

36. =3*3
16
120
10 -000
9

37. =7*20
3:4:5 -- 5:12:13 -- 7:24:25
0 (any fraction with 0 on top is 0)
140
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)

38. =6^5
7 -776
Subtract the smallest number from the greatest number
729
162

39. =4^3
192
64
40
209

40. =11^2
729
8
1 -000 -000 -000
121

41. =4*19
2 -401
76
729
27

42. =3*11
121
57
24
33

43. =15*20
102
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
6
300

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

45. 8^(1/3)
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
144
2
36

46. SQRT 100
3 -125
0 (any fraction with 0 on top is 0)
10
80

47. =8*15
210
8
120
256

48. =2^6
64
4
625
Difference in the y-coordinates over the difference in the x coodinates

49. =18*20
360
171
Pr^2
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6

50. =9*15
60
135
7
Even