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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. =5^5
729
81
3 -125
100

2. =17*17
289
80
48
1 -000

3. =9*13
120
117
225
Pr^2

4. Right Isosceles triangle (lengths)?
3
One (1)
Side - Side - Side^2
1 -000

5. =2^5
80
32
140
65

6. =9*16
144
100
1 -024
25

7. =14*15
100 -000
100 -000 -000
198
210

8. 27^(1/3)
361
0 (any fraction with 0 on top is 0)
7
3

9. =9*10
44
90
36
Invert (reciprocal) the second fraction and multiply

10. =15*19
10 -000
255
Even
285

11. If you raise a positive fraction that is less than 1 to a power - what happens to the fraction?
Multiply the # of choices for each of the spots
It gets smaller
49
39

12. Probability that A and B will both happen?
8
234
60
A*B (Multiply both probabilities)

13. =3*9
40
51
27
209

14. =2^3
30
8
260
2 -401

15. =9^2
100 -000 -000
16
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
81

16. =7*10
It gets smaller
Multiply the # of choices for each of the spots
209
70

17. =4*18
42
72
81
240

18. Permutations: single source - order matters BUT only for a selection
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
256
64
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken

19. =13*15
625
195
289
108

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

21. Equation for a line?
256
49
42
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

22. Circumference of a circle?
121
2pr
143
4

23. SQRT 400
225
20
216
2

24. =12*13
32
156
165
105

25. =12*18
3
40
216
100 -000

26. How do you find the slope of a line?
162
Difference in the y-coordinates over the difference in the x coodinates
154
4

27. =7*17
135
1.414213562
It gets smaller
119

28. =5*8
13
40
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)
156

29. =15^2
300
225
90
108

30. =6*19
20
114
252
Even

31. =18*20
360
324
224
40

32. Any number to the first power is?
168
Itself
323
9

33. =15*20
Rate * Time = Distance (Hint: Draw a chart)
300
Multiply the numerators and put the product over the product of the denominators
64

34. =20^2
8
400
44
180

35. Adding or subtracting fractions with the same denominator
27
60
(x-y)^2
Add or subtract the numbers on top and keep the same denominator

36. =11*17
143
3
187
168

37. SQRT 25
9
1 -000
5
144

38. =4*20
288
81
80
1 -000

39. =14*18
252
Even
52
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)

40. =8*14
324
216
112
4

41. =7*19
343
133
152
60

42. =2^10
192
729
625
1 -024

43. =11^2
121
24
343
152

44. =4^5
15
1 -024
Rate * Time = Distance (Hint: Draw a chart)
Subtract the smallest number from the greatest number

45. =6^5
1
9
7 -776
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)

46. =8^3
39
102
512
289

47. =9*9
27
81
198
125

48. multiplying decimals
6 -561
Ignor decimal points and multiply the two numbers - then count the digits to the right of the decimal points in the original numbers and place the decimal so there are the same number of digits to the right of the decimal
18
57

49. =7*11
85
77
48
192

50. When is a number divisible by 6?
Even
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)
One (1)
It becomes positive