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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*15
45
255
108
323

2. Adding or subtracting fractions with the same denominator
Add or subtract the numbers on top and keep the same denominator
119
1 -024
3

3. =16*16
256
260
8
9

4. multiplying decimals
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
198
100 -000
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)

5. How do you find the median of a set of numbers?
306
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
625
16

6. Problem that asks you to choose a # of items to fill specific spots - when each spot is filled from a different source?
Multiply the # of choices for each of the spots
343
Combinations don't care about the order of the problems
13

7. =3*5
10 -000
6 -561
121
15

8. =2^3
8
42
56
Undefined

9. =2^9
512
49
72
70

10. =12*18
187
216
64
Odd

11. =3^6
180
5
108
729

12. 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)
15
51
64

13. =10^3
1 -000
32
5
120

14. =7*8
40
56
Multiply the # of choices for each of the spots
144

15. Probability that A or B will happen?
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
A+B (Add both probabilities)
9
343

16. =8*11
512
88
60
3

17. =14*18
8
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
114
252

18. =3^1
100 -000 -000
Won't = 1 - Will
3
729

19. =5*7
84
35
234
46 -656

20. =11*13
42
16
143
91

21. =2^6
210
64
10 -000 -000 -000
66

22. SQRT 100
187
729
Side - Side - Side^2
10

23. =9*15
176
2 -401
135
Number of outcomes you want/total number of possible outcomes

24. =5^4
81
625
102
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)

25. =11*12
625
Multiply both fractions to get a common denominator add or subtract as usual
1 -000 -000
132

26. odd + odd =
99
45
Even
56

27. =7*16
112
Multiply the # of choices for each of the spots
25
228

28. =6*13
119
A+B (Add both probabilities)
289
78

29. 4/0 =
Undefined
105
102
36

30. When is a number divisible by 4?

31. =5*11
512
Subtract the smallest number from the greatest number
4
55

32. SQRT 49
7
182
75
128

33. =4*17
162
68
323
169

34. Odds that something doesn't happen?

35. Adding or subtracting fractions with different denominators
112
Multiply both fractions to get a common denominator add or subtract as usual
81
1 -024

36. =8*18
144
285
80
1 -024

37. =11*11
121
Undefined
70
169

38. =11*14
90
5
154
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6

39. Does x^2 + x^3 = x^5?
27
NO
10 -000
380

40. =18*19
342
16
4
224

41. =3*9
4 -096
1 -024
27
46 -656

42. 64^(1/3)
125
4
0 (any fraction with 0 on top is 0)
208

43. How do you find the slope of a line?
343
120
Difference in the y-coordinates over the difference in the x coodinates
136

44. =11*17
A+B (Add both probabilities)
187
25
4

45. =9*20
208
108
143
180

46. =17*19
324
Combinations don't care about the order of the problems
143
323

47. =8*14
NO
Rate * Time = Distance (Hint: Draw a chart)
84
112

48. =8*15
51
44
120
324

49. =1^3
216
7
2 -401
1

50. odd x odd =
Odd
76
35
1 -000