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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. =10^3
64
5
1 -000
125

2. =4^6
119
64
4
4 -096

3. SQRT 100
32
90
72
10

4. =11*11
46 -656
121
It gets smaller
Difference in the y-coordinates over the difference in the x coodinates

5. SQRT 49
135
56
7
Multiply the numerators and put the product over the product of the denominators

6. =6^5
168
10 -000 -000
7 -776
84

7. =13*18
3 -125
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)
1 -000
234

8. 125^(1/3)
15
42
55
5

9. When is a number divisible by 3?
27
3
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
64

10. When is a number divisible by 3?
304
64
180
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)

11. Right Isosceles triangle (lengths)?
180
120
2
Side - Side - Side^2

12. =13*19
33
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
225
247

13. =16*20
100 -000 -000
320
8
48

14. =8*15
64
16
10 -000
120

15. =10^7
2pr
171
102
10 -000 -000

16. even x odd =
54
Even
121
8

17. =9^4
Odd
49
6 -561
1.414213562

18. Adding or subtracting fractions with the same denominator
153
x:x^(1/3):2x
49
Add or subtract the numbers on top and keep the same denominator

19. =6^3
Start with the number of permutations - that is the numerator(top). The Denominator is the number of combinations (eg 432*1)
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
216
75

20. =5*10
Number of outcomes you want/total number of possible outcomes
(x-y)^2
50
162

21. SQRT 256
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
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6
7

22. =5^4
625
180
8
340

23. 8^(1/3)
5
80
72
2

24. =5*13
65
68
Permutations ask for 'arraingements' Combinations ask for 'Groups'
4

25. odd + odd =
198
70
Odd
Even

26. When is a number divisible by 4?

27. =4*9
144
340
80
36

28. =7*19
100
133
10
Even

29. =7^2
100 -000
132
165
49

30. =13*20
153
NO
20
260

31. =13*14
Multiply the numerators and put the product over the product of the denominators
1 -000
4
182

32. =12*18
216
0 (any fraction with 0 on top is 0)
220
Odd

33. =6*12
77
42
72
28

34. SQRT 1 -024
6
32
1 -000
95

35. Adding or subtracting fractions with different denominators
Multiply both fractions to get a common denominator add or subtract as usual
60
288
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)

36. =9*10
160
49
625
90

37. 64^(1/3)
Invert (reciprocal) the second fraction and multiply
4
216
66

38. =9*13
85
343
117
64

39. =7*17
119
54
36
78

40. =9^3
The direction of the inequality symbol changes
1 -296
729
135

41. =9*11
99
256
8
156

42. SQRT 3
78
48
1.732050808
32

43. Does x^2 + x^3 = x^5?
32
63
168
NO

44. =3^5
114
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)
3
243

45. Exponents - Raising a power to a power
238
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6
4
56

46. =17*20
256
340
9
128

47. SQRT 6 -561
81
Move the decimal to the right on both numbers until there is nothing to the right of the decimal
Undefined
208

48. SQRT 25
324
10
78
5

49. =4*11
44
112
2pr
45

50. =20*20
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
13
70
400