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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. =5*5
25
126
100 -000
88

2. =4*14
36
33
56
272

3. =11*13
72
4
54
143

4. =3*3
36
9
64
112

5. =4*11
44
1 -000
45
304

6. =4*4
32
380
88
16

7. =5^4
324
Line up the decimal points and proceed as usual
The reciprocal of the same number to the positive power (y). (eg 3^-2 = 1/(3^2) = 1/9)
625

8. =12*13
27
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
156
135

9. SQRT 10 -000
180
100
33
39

10. =15^2
225
7
4
Even

11. 64^(1/3)
4
9
204
56

12. =5^2
NO
121
32
25

13. Distance Formula?
Rate * Time = Distance (Hint: Draw a chart)
400
57
Undefined

14. =8*16
144
128
Pick the # that occurs most frequently
234

15. =4*10
102
40
9
20

16. =6^3
16
Undefined
216
234

17. =9^5
196
18
59 -049
221

18. =6^1
49
6
7
152

19. 729^(1/3)
9
361
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
360

20. =4*18
77
72
7 -776
6

21. =11*11
121
84
30
Amount of increase/original amount = x/100 (Then cross multiply to find x)

22. 27^(1/3)
1
125
180
3

23. =4*9
1
400
36
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

24. =11*14
9
66
154
51

25. =7*12
84
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
136

26. =3*4
12
8
Won't = 1 - Will
9

27. SQRT 100
81
7
30
10

28. =8^3
512
Multiply the # of choices for each of the spots
49
Won't = 1 - Will

29. =4^2
16
4
33
512

30. =7*8
78
56
228
98

31. =10^2
192
81
90
100

32. =18*19
342
192
6
225

33. =5^1
Even
60
5
144

34. =3^4
Permutations ask for 'arraingements' Combinations ask for 'Groups'
NO
289
81

35. =16*17
195
NO
5^(1/3)
272

36. even + odd =
2
56
380
Odd

37. =9*15
135
165
192
2

38. =9^4
6 -561
7
304
343

39. =12*14
13
8
168
3 -125

40. =3*9
24
27
Pick the # that occurs most frequently
5^(1/3)

41. How do you find the median of a set of numbers?
7
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
1 -296

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

43. =6*7
153
42
48
96

44. =7*18
39
4
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
126

45. =5*8
60
Even
40
128

46. =9*19
209
15
171
9

47. =6*11
48
25
66
3:4:5 -- 5:12:13 -- 7:24:25

48. =9*14
63
126
10
729

49. Any number to the negative power (y) is equal to?
140
25
A*B (Multiply both probabilities)
The reciprocal of the same number to the positive power (y). (eg 3^-2 = 1/(3^2) = 1/9)

50. =13*13
42
128
169
2 -401