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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. SQRT 4
128
16
320
2

2. 216^(1/3)
45
6
80
Difference in the y-coordinates over the difference in the x coodinates

3. even + odd =
Odd
15
32
2 -401

4. SQRT 3
25
323
57
1.732050808

5. Any number to the 0 power is?
It gets smaller
One (1)
A*B (Multiply both probabilities)
182

6. =12*18
3:4:5 -- 5:12:13 -- 7:24:25
216
195
72

7. SQRT 2
1.414213562
209
171
56

8. =3*18
102
125
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
54

9. =11*11
72
121
24
45

10. =13*14
280
182
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
144

11. =9^3
729
84
252
3

12. =2^8
5
56
256
192

13. Odds that something doesn't happen?

14. =25^2
625
27
11
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller

15. =6*17
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
102
54
153

16. =4*11
512
187
44
30

17. =3*4
30
247
306
12

18. =5*8
380
(x-y)^2
40
114

19. =11^2
220
64
160
121

20. =8*16
128
198
3:4:5 -- 5:12:13 -- 7:24:25
80

21. =11*18
20
198
1 -296
48

22. =3*17
51
100 -000
16
64

23. =4*19
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)
2pr
25
76

24. =9*20
512
98
180
105

25. =6*19
10 -000 -000 -000
114
140
8

26. =5*9
60
45
220
60

27. =8*12
16
96
Subtract the smallest number from the greatest number
36

28. 0/1 =
Pick the # that occurs most frequently
285
81
0 (any fraction with 0 on top is 0)

29. =5*7
The direction of the inequality symbol changes
4
35
NO

30. =3*14
64
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
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)
42

31. Dividing Fractions
135
76
Invert (reciprocal) the second fraction and multiply
1 -024

32. Dividing Decimals
Move the decimal to the right on both numbers until there is nothing to the right of the decimal
36
98
Undefined

33. odd + odd =
210
360
Even
Combinations don't care about the order of the problems

34. =3^2
195
3 -125
64
9

35. =4^2
8
27
16
152

36. =7*8
Combinations don't care about the order of the problems
56
1 -000
35

37. =8*14
112
3
(x-y)^2
x:x^(1/3):2x

38. =3*16
729
35
16
48

39. even x even =
54
238
88
Even

40. =7*9
56
63
Rate * Time = Distance (Hint: Draw a chart)
100

41. =5*6
30
2 -401
85
Multiply both fractions to get a common denominator add or subtract as usual

42. =13*15
36
195
28
Add or subtract the numbers on top and keep the same denominator

43. Right Isosceles triangle (lengths)?
7
Start with the number of permutations - that is the numerator(top). The Denominator is the number of combinations (eg 432*1)
Side - Side - Side^2
9

44. =5^3
68
Subtract the smallest number from the greatest number
125
5

45. 0/1 =
180
0 (any fraction with 0 on top is 0)
104
288

46. =13*19
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
247
64
6

47. Does x^2 + x^3 = x^5?
16
180
NO
100

48. Order of operations
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)
24
2 -401
57

49. Basic probability formula?
Number of outcomes you want/total number of possible outcomes
27
49
8

50. =19*20
2 -401
343
380
Line up the decimal points and proceed as usual

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GMAT Math Memorization

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