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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. =5^3
729
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
125
144

2. 4/0 =
4 -096
Undefined
28
(x-y)^2

3. Dividing Fractions
Invert (reciprocal) the second fraction and multiply
49
88
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6

4. What is the difference between a permutation or a combination?

5. =6*17
Even
102
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6
50

6. =7*17
266
1 -000 -000
289
119

7. =7*7
54
25
304
49

8. =5*6
30
81
224
Pr^2

9. =7^4
48
36
2 -401
72

10. =17*19
4 -096
100 -000
323
Combinations don't care about the order of the problems

11. SQRT 729
60
27
49
10 -000

12. =15*17
255
5
256
Even

13. =13*13
84
1
64
169

14. 0/1 =
285
100
32
0 (any fraction with 0 on top is 0)

15. Basic probability formula?
20
Number of outcomes you want/total number of possible outcomes
6
78

16. Does (x^2 + y^2 + z^2)/(x^2 + y^2) = z^2?
NO
75
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
66

17. =4^1
221
12
Side - Side - Side^2
4

18. =3*14
4
7 -776
42
32

19. =8^3
11
512
96
108

20. =8*16
91
6
128
1.414213562

21. =9*15
9
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)
729
135

22. =19*19
224
125
Line up the decimal points and proceed as usual
361

23. 216^(1/3)
6
4 -096
72
144

24. =3*6
304
32
288
18

25. =4*11
44
135
59 -049
64

26. =3*16
48
77
Pr^2
1 -296

27. =14*14
196
270
160
Even

28. =7*12
108
100 -000 -000
84
Odd

29. =6*8
44
9
48
152

30. =8*13
104
135
56
320

31. =17*18
306
32
119
95

32. =4*13
108
52
Odd
196

33. =8*9
300
A+B (Add both probabilities)
72
152

34. =12*13
180
0 (any fraction with 0 on top is 0)
156
Add their exponents (6^2 *6^3 = 6^5)

35. =13*14
Even
0 (any fraction with 0 on top is 0)
182
45

36. =5*19
95
Won't = 1 - Will
78
1 -024

37. =5*13
65
10
81
228

38. Right Isosceles triangle (lengths)?
70
90
36
Side - Side - Side^2

39. =8*18
81
144
272
126

40. =3*9
234
304
72
27

41. =2^5
135
121
Odd
32

42. =4^6
15
0 (any fraction with 0 on top is 0)
4 -096
Line up the decimal points and proceed as usual

43. =3^1
0 (any fraction with 0 on top is 0)
Even
3
162

44. SQRT 49
Add or subtract the numbers on top and keep the same denominator
288
7
247

45. =10^4
NO
380
10 -000
91

46. =14*18
512
3
A+B (Add both probabilities)
252

47. =2^3
144
100 -000
8
It becomes positive

48. SQRT 625
25
Base * Height
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)
68

49. =9*17
48
9
64
153

50. =11*14
154
1 -000
153
304