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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. =8*20
Add or subtract the numbers on top and keep the same denominator
221
160
60

2. =5^4
27
48
A+B (Add both probabilities)
625

3. If you raise a negative number to an even power - what happens to the number?
10 -000
112
28
It becomes positive

4. =6*10
60
10 -000 -000 -000
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
289

5. =4*20
64
80
78
10 -000 -000 -000

6. =8*15
36
114
625
120

7. 64^(1/3)
49
Odd
4
144

8. =17*20
340
Even
55
9

9. =10^10
49
10 -000 -000 -000
80
221

10. =5^3
72
220
240
125

11. =13*20
9
306
84
260

12. Permutations: single source - order matters
108
Pick the # that occurs most frequently
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
81

13. =11*14
196
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
154
Undefined

14. When is a number divisible by 4?

15. =5*15
75
Pick the # that occurs most frequently
It becomes positive
512

16. =11*15
165
NO
10 -000 -000 -000
46 -656

17. =4*14
It gets smaller
56
64
266

18. =3*8
102
16
289
24

19. =9*12
117
Base * Height
64
108

20. =6*14
Undefined
7 -776
Multiply the numerators and put the product over the product of the denominators
84

21. =12*15
2
180
105
Won't = 1 - Will

22. =4*5
Will = 1 - Won't
20
40
6

23. =6^4
144
1 -296
10
30

24. If you raise a positive fraction that is less than 1 to a power - what happens to the fraction?
It gets smaller
343
13
323

25. How do you find the median of a set of numbers?
125
78
121
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s

26. =8^1
8
272
Combinations don't care about the order of the problems
Permutations ask for 'arraingements' Combinations ask for 'Groups'

27. =6*16
25
96
It becomes positive
247

28. SQRT 2
221
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
256
1.414213562

29. =6^2
121
39
240
36

30. =4*17
119
48
27
68

31. =2^2
Odd
Difference in the y-coordinates over the difference in the x coodinates
4
56

32. =11*16
36
77
176
65

33. =14*17
15
238
24
10 -000 -000

34. =7*13
1 -024
91
256
121

35. 729^(1/3)
306
9
80
10 -000

36. Adding or subtracting fractions with different denominators
72
Multiply both fractions to get a common denominator add or subtract as usual
85
260

37. =17*19
323
256
3 -125
Pr^2

38. =6*11
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
NO
100
66

39. =8*17
198
136
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)
132

40. 125^(1/3)
81
Difference in the y-coordinates over the difference in the x coodinates
10
5

41. Adding or subtracting fractions with the same denominator
48
121
Add or subtract the numbers on top and keep the same denominator
Itself

42. Multiplying Fractions
40
Subtract the smallest number from the greatest number
24
Multiply the numerators and put the product over the product of the denominators

43. =19*19
Permutations ask for 'arraingements' Combinations ask for 'Groups'
54
3 -125
361

44. Odds that something doesn't happen?

45. even x even =
18
240
85
Even

46. =13*19
512
64
Invert (reciprocal) the second fraction and multiply
247

47. =10^3
9
24
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
1 -000

48. SQRT 81
72
24
9
144

49. =8*19
30
24
152
49

50. =5^3
100 -000 -000
125
288
One (1)