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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. =3*13
39
70
168
8

2. SQRT 400
Even
119
20
64

3. =6^3
8
28
216
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6

4. =3*8
112
27
324
24

5. SQRT 4
27
1 -000
2
56

6. =7*7
49
114
Add or subtract the numbers on top and keep the same denominator
One (1)

7. Odds that at least one thing will happen?

8. How do you find the slope of a line?
45
Difference in the y-coordinates over the difference in the x coodinates
55
Combinations don't care about the order of the problems

9. SQRT 2 -401
156
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)
247
49

10. =12*16
192
220
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
256

11. SQRT 9
Even
Base * Height
3
(x-y)^2

12. =2^5
Even
30
32
144

13. 512^(1/3)
8
7
81
729

14. Basic probability formula?
266
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
Number of outcomes you want/total number of possible outcomes
57

15. =4*8
32
1 -000
1
10

16. =4*9
360
4
48
36

17. =18*19
342
76
27
88

18. Odds that something doesn't happen?

19. =25^2
625
90
117
Multiply both fractions to get a common denominator add or subtract as usual

20. 27^(1/3)
66
40
100
3

21. =5*11
55
152
126
30

22. =7*14
105
1 -000 -000
98
7

23. =10^5
100 -000
27
40
Pr^2

24. even x odd =
81
144
Even
1 -024

25. =2^2
4
343
102
49

26. =19*19
57
88
361
18

27. =11*17
85
91
5
187

28. =7^2
105
1.732050808
49
180

29. =6^5
7 -776
99
121
16

30. =8*19
3 -125
152
Add or subtract the numbers on top and keep the same denominator
Add their exponents (6^2 *6^3 = 6^5)

31. =11*13
84
143
117
NO

32. =3^6
A*B (Multiply both probabilities)
380
729
153

33. =14*15
1.732050808
154
210
240

34. SQRT 1 -024
121
340
0 (any fraction with 0 on top is 0)
32

35. =14*16
64
729
224
112

36. Another way to write cube root 5
48
152
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6
5^(1/3)

37. Exponents - Multiplying numbers with same base
Add their exponents (6^2 *6^3 = 6^5)
125
1
Combinations don't care about the order of the problems

38. =15*15
240
196
247
225

39. =3*15
7
1 -024
45
4 -096

40. Factor x^2-2xy+y^2
16
65
NO
(x-y)^2

41. =7*12
A*B (Multiply both probabilities)
84
20
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

42. Right Isosceles triangle (lengths)?
1
Side - Side - Side^2
15
121

43. =5*20
84
361
48
100

44. =4*13
152
108
52
20

45. =6*9
512
304
54
90

46. =4*10
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
Move the decimal to the right on both numbers until there is nothing to the right of the decimal
40
100 -000 -000

47. Adding or subtracting fractions with the same denominator
117
Add or subtract the numbers on top and keep the same denominator
119
98

48. =6^6
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
46 -656
50

49. =10^10
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
100
10 -000 -000 -000
1 -000 -000

50. =2^10
10 -000
187
2
1 -024