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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*6
36
Even
136
4

2. =10^8
68
225
100 -000 -000
Rate * Time = Distance (Hint: Draw a chart)

3. =8*9
216
72
8
160

4. SQRT 49
20
126
7
0 (any fraction with 0 on top is 0)

5. =16*18
729
288
136
119

6. Area of a circle?
Invert (reciprocal) the second fraction and multiply
224
Pr^2
4

7. Odds that at least one thing will happen?

8. =3^3
255
112
64
27

9. =6*7
10 -000 -000 -000
Pr^2
42
It gets smaller

10. =11*14
10 -000
3
63
154

11. SQRT 64
100
136
112
8

12. =3*20
180
60
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
3:4:5 -- 5:12:13 -- 7:24:25

13. =7*7
49
59 -049
55
13

14. =8^3
512
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
56

15. =11^2
Invert (reciprocal) the second fraction and multiply
72
81
121

16. =6*11
Amount of increase/original amount = x/100 (Then cross multiply to find x)
247
42
66

17. =6^2
36
25
125
70

18. Basic probability formula?
Number of outcomes you want/total number of possible outcomes
56
Undefined
144

19. Pythagorean Triples (lengths)?
216
36
3:4:5 -- 5:12:13 -- 7:24:25
133

20. =3*19
Amount of increase/original amount = x/100 (Then cross multiply to find x)
28
Side - Side - Side^2
57

21. =8*16
8
128
224
Pr^2

22. Does x^6 - x^2 = x^4?
729
NO
1 -296
49

23. When is a number divisible by 4?

24. =20*20
A*B (Multiply both probabilities)
400
36
27

25. =12*13
64
156
4
5

26. =8*14
54
112
39
24

27. Another way to write cube root 5
180
1
Undefined
5^(1/3)

28. =6*8
135
228
48
42

29. =8*19
225
60
152
70

30. When is a number divisible by 6?
7
225
42
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)

31. =9^2
0 (any fraction with 0 on top is 0)
243
169
81

32. =11*11
(x-y)^2
105
Odd
121

33. =15*16
Subtract the smallest number from the greatest number
240
272
125

34. =9^4
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
6 -561
NO
102

35. =5^4
625
44
42
13

36. =8*10
220
121
80
2

37. =2^10
1 -024
0 (any fraction with 0 on top is 0)
Base * Height
Undefined

38. SQRT 81
3
144
9
99

39. =6^5
16
7 -776
70
64

40. =3^5
81
Multiply both fractions to get a common denominator add or subtract as usual
7 -776
243

41. =18*18
81
324
48
49

42. =7*8
84
56
Amount of increase/original amount = x/100 (Then cross multiply to find x)
12

43. =9*17
162
153
Even
208

44. =9*15
135
55
16
221

45. =5*19
95
100 -000
56
243

46. SQRT 1 -000 -000
1 -000
1 -000 -000
75
252

47. =13*13
266
126
169
57

48. =10^3
225
15
1 -000
Itself

49. =4*19
The direction of the inequality symbol changes
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
3
76

50. What happens if you multiply or divide both sides of an inequality by a negative number?
The direction of the inequality symbol changes
64
400
380