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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. What happens if you multiply or divide both sides of an inequality by a negative number?
380
The direction of the inequality symbol changes
2 -401
57

2. =5*11
125
1 -024
4
55

3. SQRT 64
Odd
340
270
8

4. SQRT 81
84
126
9
Multiply the numerators and put the product over the product of the denominators

5. =6*8
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
3
48
60

6. =4^4
A+B (Add both probabilities)
Pr^2
45
256

7. =8*10
80
70
100 -000
64

8. how do you find the range of a set of numbers?
128
Even
Subtract the smallest number from the greatest number
342

9. =14*14
196
136
320
27

10. SQRT 100
44
240
10
57

11. =7^3
343
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
100
75

12. Does x^2 + x^3 = x^5?
132
9
240
NO

13. =4*7
255
One (1)
28
54

14. =9*19
198
171
80
240

15. =9*20
20
210
27
180

16. =10^3
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
60
Even
1 -000

17. 216^(1/3)
6
55
81
Itself

18. Dividing Decimals
46 -656
Base * Height
Move the decimal to the right on both numbers until there is nothing to the right of the decimal
54

19. 512^(1/3)
1.414213562
54
8
65

20. =8^3
42
512
81
196

21. =4*11
6
100
44
304

22. =10^5
135
100 -000
70
108

23. =4*8
32
169
512
The direction of the inequality symbol changes

24. =11*20
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
220
8
300

25. If you raise a positive fraction that is less than 1 to a power - what happens to the fraction?
50
It gets smaller
Add or subtract the numbers on top and keep the same denominator
1.414213562

26. =4*15
Side - Side - Side^2
60
49
56

27. =5*19
216
Amount of increase/original amount = x/100 (Then cross multiply to find x)
64
95

28. =12*17
72
320
6
204

29. =12*14
10 -000
247
168
Pick the # that occurs most frequently

30. =20*20
400
2
32
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken

31. =3^3
343
154
42
27

32. =10^7
180
256
10 -000 -000
0 (any fraction with 0 on top is 0)

33. =5*20
1.414213562
135
100
360

34. =10^10
125
10 -000 -000 -000
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)
64

35. =3^4
39
238
100 -000 -000
81

36. SQRT 121
400
360
80
11

37. SQRT 3
1.732050808
45
Side - Side - Side^2
6

38. =3*9
78
32
0 (any fraction with 0 on top is 0)
27

39. =11*11
121
Base * Height
Even
15

40. =5*10
45
72
100 -000 -000
50

41. =10^2
2
Combinations don't care about the order of the problems
100
48

42. =5*15
75
216
8
32

43. =12*20
240
40
72
98

44. 4/0 =
1 -000 -000
NO
Undefined
192

45. =13*18
128
9
6 -561
234

46. =2^7
81
1 -296
60
128

47. =8*11
88
8
64
6

48. =6^6
84
216
46 -656
361

49. =5*16
Will = 1 - Won't
64
80
45

50. Multiplying Fractions
56
306
Multiply the numerators and put the product over the product of the denominators
x:x^(1/3):2x