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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 10 -000 -000 -000
1
100 -000
1 -000 -000
42

2. =11*18
24
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
6
198

3. even x odd =
4
Even
Odd
216

4. Exponents - Raising a power to a power
128
16
156
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6

5. =16*19
304
64
361
6

6. =4*16
228
It gets smaller
64
198

7. =4*13
(x-y)^2
52
Rate * Time = Distance (Hint: Draw a chart)
The direction of the inequality symbol changes

8. Permutations: single source - order matters BUT only for a selection
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
A*B (Multiply both probabilities)
9
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)

9. =3*19
36
Combinations don't care about the order of the problems
57
252

10. =12*13
156
90
512
42

11. =3*5
27
15
39
343

12. =7^4
15
360
4
2 -401

13. Does x^2 + x^3 = x^5?
NO
234
Move the decimal to the right on both numbers until there is nothing to the right of the decimal
360

14. =5*10
238
50
24
228

15. =8*18
99
255
144
260

16. =5^5
135
3 -125
42
52

17. SQRT 169
27
13
(x-y)^2
1 -024

18. =7*12
36
84
126
117

19. =6^3
Undefined
216
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
16

20. =18*18
A*B (Multiply both probabilities)
Pick the # that occurs most frequently
324
NO

21. =16*17
96
84
1.414213562
272

22. SQRT 10 -000
Permutations ask for 'arraingements' Combinations ask for 'Groups'
100
105
380

23. 8^(1/3)
128
81
98
2

24. 0/1 =
4
0 (any fraction with 0 on top is 0)
Multiply the numerators and put the product over the product of the denominators
4

25. =11*12
NO
9
132
56

26. Factor x^2-2xy+y^2
165
98
121
(x-y)^2

27. =4^2
216
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
16

28. =4*15
60
625
9
A*B (Multiply both probabilities)

29. Area of a triangle?
(b*h)/2
3 -125
48
169

30. =9^4
6 -561
625
33
144

31. =6*18
108
2
1 -296
176

32. =20*20
400
85
25
6

33. =4*20
243
Combinations don't care about the order of the problems
80
88

34. Adding or subtracting fractions with the same denominator
Add or subtract the numbers on top and keep the same denominator
10 -000
81
126

35. =4^6
156
76
225
4 -096

36. =14*15
Odd
210
81
48

37. =3*3
360
88
2pr
9

38. =6*9
121
54
44
8

39. =3*13
Rate * Time = Distance (Hint: Draw a chart)
39
18
289

40. How do you tell if it's a permutation or combination?

41. =5*11
9
55
6
65

42. =5*15
324
Will = 1 - Won't
75
6

43. Odds that at least one thing will happen?

44. =3^3
10 -000 -000
27
180
81

45. =17*18
64
108
306
A*B (Multiply both probabilities)

46. even + even =
1
121
Even
NO

47. =12*12
48
234
176
144

48. =4*8
154
360
100
32

49. =6^1
6
195
42
5

50. =14*20
65
32
280
Even