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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. =7*12
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
Permutations ask for 'arraingements' Combinations ask for 'Groups'
40
84

2. =15^2
Rate * Time = Distance (Hint: Draw a chart)
225
77
40

3. =7^3
343
361
4
1.414213562

4. SQRT 256
28
20
16
57

5. =12*18
729
54
216
32

6. =3*4
12
54
99
32

7. =5^1
5
360
143
64

8. =8*13
81
15
104
46 -656

9. Area of a triangle?
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
209
66
(b*h)/2

10. =6*7
42
51
44
729

11. 125^(1/3)
16
5
198
100 -000 -000

12. =10^6
125
256
1 -000 -000
42

13. =11*16
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
176
9
729

14. =6^4
1 -296
125
10 -000 -000 -000
25

15. =9*15
64
135
Permutations ask for 'arraingements' Combinations ask for 'Groups'
36

16. =11*11
1.414213562
121
125
NO

17. =8*16
Difference in the y-coordinates over the difference in the x coodinates
NO
128
5^(1/3)

18. =4*7
5
Start with the number of permutations - that is the numerator(top). The Denominator is the number of combinations (eg 432*1)
28
36

19. =2^3
112
8
27
729

20. =4^3
133
380
400
64

21. =8^3
512
1 -296
100
95

22. =7^3
4 -096
343
The direction of the inequality symbol changes
8

23. =6^3
39
216
A+B (Add both probabilities)
380

24. =8*20
361
160
1 -024
7

25. =3*18
119
80
3
54

26. =7^2
2
49
128
77

27. =5*19
156
95
Undefined
240

28. =10^8
162
Even
Add their exponents (6^2 *6^3 = 6^5)
100 -000 -000

29. =15*20
24
192
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
300

30. =16*20
512
320
270
121

31. =17*19
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
323
64
40

32. =18*20
360
4
A*B (Multiply both probabilities)
Move the decimal to the right on both numbers until there is nothing to the right of the decimal

33. =9*17
75
729
153
64

34. SQRT 49
Odd
7
25
1 -296

35. =5^2
10
25
84
160

36. =7^1
729
Multiply the # of choices for each of the spots
1 -000 -000
7

37. =5*5
25
144
The direction of the inequality symbol changes
16

38. =11*20
4 -096
220
36
90

39. =6^2
198
36
1.414213562
125

40. When is a number divisible by 3?
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
1.414213562
60
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)

41. Dividing Fractions
It gets smaller
Multiply the # of choices for each of the spots
Invert (reciprocal) the second fraction and multiply
7

42. 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
5^(1/3)
68
51

43. Odds that something doesn't happen?

44. =7*16
280
70
(x-y)^2
112

45. =7^4
44
25
1
2 -401

46. =3*14
42
16
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
Rate * Time = Distance (Hint: Draw a chart)

47. =13*15
6
195
240
260

48. 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)
81
81
3

49. =9^4
6 -561
136
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
144

50. =1^3
1
78
Even
40