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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. =7^2
81
Multiply the # of choices for each of the spots
Base * Height
49

2. =5*10
(b*h)/2
9
256
50

3. Does x^6 - x^2 = x^4?
119
729
Will = 1 - Won't
NO

4. =3*4
136
165
243
12

5. =6*15
90
9
27
Multiply both fractions to get a common denominator add or subtract as usual

6. =4*17
55
A+B (Add both probabilities)
68
NO

7. =19*20
255
380
Will = 1 - Won't
729

8. =4^6
324
4 -096
176
3:4:5 -- 5:12:13 -- 7:24:25

9. Exponents - Dividing numbers with same base
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)
4 -096
64
Add or subtract the numbers on top and keep the same denominator

10. =5*5
625
25
52
102

11. =17*17
52
289
220
180

12. =9*16
40
143
144
119

13. =8*16
Won't = 1 - Will
114
7
128

14. SQRT 4
2
64
240
64

15. =8*12
96
198
1.732050808
56

16. =20^2
46 -656
400
187
247

17. =9*9
35
112
81
98

18. =8*10
100 -000
216
80
6 -561

19. =12*16
192
169
128
Odd

20. =10^1
10
20
46 -656
44

21. =6^3
1 -000
133
216
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6

22. =4*13
260
52
77
Add their exponents (6^2 *6^3 = 6^5)

23. =6^6
512
220
289
46 -656

24. Order of operations
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)
4
7
48

25. even + even =
Even
171
7 -776
112

26. =4*5
20
289
10 -000 -000 -000
4 -096

27. =4*10
729
40
85
168

28. =3^2
9
162
15
10 -000

29. When is a number divisible by 4?

30. =4*20
80
63
204
121

31. odd x odd =
340
625
Odd
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller

32. =9*14
209
126
160
1 -000

33. =6*19
NO
40
114
5

34. =10^3
228
52
1 -000
10 -000 -000

35. Permutations: single source - order matters BUT only for a selection
95
10
360
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken

36. =3^5
243
4
154
8

37. =13*15
56
195
306
90

38. =11*14
225
The direction of the inequality symbol changes
154
289

39. Any number to the 0 power is?
Difference in the y-coordinates over the difference in the x coodinates
3
One (1)
216

40. =7*12
Itself
32
8
84

41. =16*17
272
Even
70
323

42. Does (x^2 + y^2 + z^2)/(x^2 + y^2) = z^2?
Permutations ask for 'arraingements' Combinations ask for 'Groups'
NO
260
9

43. =5*13
208
65
20
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)

44. Dividing Fractions
100
Invert (reciprocal) the second fraction and multiply
81
36

45. =9^5
216
80
59 -049
64

46. =3^3
25
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
36
27

47. =13*17
221
Add or subtract the numbers on top and keep the same denominator
72
Pr^2

48. When is a number divisible by 3?
108
81
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
288

49. =7*7
39
121
80
49

50. =4*4
100
Number of outcomes you want/total number of possible outcomes
16
625

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