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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. Distance Formula?
It gets smaller
Even
48
Rate * Time = Distance (Hint: Draw a chart)

2. =3*4
24
12
1 -000
625

3. SQRT 625
216
154
25
98

4. 4/0 =
32
4
Undefined
9

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

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6. =3*11
15
2
3
33

7. 8^(1/3)
285
Combinations don't care about the order of the problems
2
28

8. 0/1 =
10 -000
9
0 (any fraction with 0 on top is 0)
15

9. =3*9
44
27
65
3:4:5 -- 5:12:13 -- 7:24:25

10. =3*20
60
81
5
39

11. =3*17
51
234
8
Combinations don't care about the order of the problems

12. =17*20
340
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6
5
4

13. =9*11
7
99
Add their exponents (6^2 *6^3 = 6^5)
24

14. =8*18
144
187
Add their exponents (6^2 *6^3 = 6^5)
Side - Side - Side^2

15. SQRT 121
Undefined
11
x:x^(1/3):2x
270

16. =15^2
1 -296
4 -096
225
247

17. How do you find the median of a set of numbers?
144
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
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
Even

18. Dividing Decimals
95
Move the decimal to the right on both numbers until there is nothing to the right of the decimal
2
45

19. =16*18
288
625
240
361

20. =9^1
9
112
168
125

21. Adding and Subtracting Decimals
Line up the decimal points and proceed as usual
169
133
48

22. =7^1
20
4
7
50

23. even x even =
76
54
Even
160

24. =8^2
70
It gets smaller
285
64

25. =9*14
81
126
1 -000
64

26. =13*18
340
234
289
6

27. Factor x^2-2xy+y^2
(x-y)^2
Base * Height
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
15

28. =2^6
Pick the # that occurs most frequently
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
260
64

29. =9*15
32
The direction of the inequality symbol changes
Won't = 1 - Will
135

30. =14*17
117
84
238
77

31. =3*8
10 -000
24
165
144

32. =8*8
Even
64
156
Invert (reciprocal) the second fraction and multiply

33. SQRT 10 -000
76
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
100
512

34. =3^1
3
240
4
36

35. =7^2
1
3:4:5 -- 5:12:13 -- 7:24:25
60
49

36. =7*20
NO
0 (any fraction with 0 on top is 0)
140
48

37. =5^1
2
5
64
152

38. =6^2
361
27
153
36

39. Any number to the first power is?
3
30
Itself
140

40. =3^5
104
243
70
48

41. =4*9
40
49
36
x:x^(1/3):2x

42. Basic probability formula?
180
8
272
Number of outcomes you want/total number of possible outcomes

43. Does x^6 - x^2 = x^4?
46 -656
104
NO
32

44. What happens if you multiply or divide both sides of an inequality by a negative number?
2
16
The direction of the inequality symbol changes
64

45. =1^3
1
Number of outcomes you want/total number of possible outcomes
1.414213562
60

46. =3*13
Pick the # that occurs most frequently
280
39
216

47. =8*17
625
136
64
3

48. =20^2
90
84
400
45

49. =8*9
3
78
72
195

50. =6*17
180
72
729
102