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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*14
1
70
7
6

2. =9*16
Side - Side - Side^2
128
144
52

3. =17*17
289
60
220
27

4. Area of a circle?
100 -000 -000
210
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)
Pr^2

5. Exponents - Multiplying numbers with same base
Add their exponents (6^2 *6^3 = 6^5)
300
8
154

6. =11*19
361
20
209
121

7. =7*14
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
25
98
13

8. Does x^2 + x^3 = x^5?
102
NO
171
3

9. Circumference of a circle?
84
256
NO
2pr

10. =16*18
288
2pr
54
176

11. When is a number divisible by 6?
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)
112
32
20

12. =15*20
1 -000
300
210
49

13. Permutations: single source - order matters BUT only for a selection
72
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
49
88

14. =3*11
36
225
33
6

15. =7*19
133
54
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6
76

16. =3*20
60
54
1 -024
91

17. =19*19
168
(x-y)^2
361
Multiply the # of choices for each of the spots

18. =8*17
121
16
2
136

19. SQRT 2 -401
182
27
49
27

20. =10^7
96
15
10 -000 -000
2

21. =2^1
136
2
255
13

22. =2^3
208
8
625
25

23. =3*8
512
24
Even
44

24. =10^8
100 -000 -000
It becomes positive
Add their exponents (6^2 *6^3 = 6^5)
46 -656

25. =13*14
182
400
36
Itself

26. =5^3
7
Even
1 -000
125

27. Exponents - Dividing numbers with same base
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)
323
99
10 -000 -000 -000

28. =5*7
114
8
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
35

29. Adding or subtracting fractions with different denominators
4
Multiply both fractions to get a common denominator add or subtract as usual
Difference in the y-coordinates over the difference in the x coodinates
42

30. =15*17
The direction of the inequality symbol changes
221
255
Pick the # that occurs most frequently

31. =5^2
225
25
10 -000 -000 -000
192

32. =6*16
96
380
220
224

33. =6^6
64
46 -656
Will = 1 - Won't
285

34. =6*17
68
3
240
102

35. =3^3
180
255
126
27

36. Dividing Fractions
Invert (reciprocal) the second fraction and multiply
Number of outcomes you want/total number of possible outcomes
112
247

37. =9*19
13
1 -000 -000 -000
171
52

38. Equation for a line?
One (1)
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
72

39. =8^3
512
Subtract the smallest number from the greatest number
A+B (Add both probabilities)
NO

40. how do you find the range of a set of numbers?
48
100 -000 -000
180
Subtract the smallest number from the greatest number

41. =8*16
324
20
128
342

42. =3^1
228
3
Add or subtract the numbers on top and keep the same denominator
90

43. Area of a parallelogram?
Base * Height
169
39
8

44. =8*12
247
132
96
x:x^(1/3):2x

45. =5*17
54
85
400
221

46. SQRT 100
40
2pr
10
35

47. =16*20
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
320
4 -096
270

48. =3^5
10 -000
289
243
119

49. =3*16
48
252
64
247

50. =2^8
91
16
256
1 -024