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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*14
96
180
70
2

2. Problem that asks you to choose a # of items to fill specific spots - when each spot is filled from a different source?
266
512
Multiply the # of choices for each of the spots
4

3. =17*19
323
256
343
A*B (Multiply both probabilities)

4. =6^4
1 -296
5^(1/3)
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
Pick the # that occurs most frequently

5. =6*20
120
266
152
625

6. =7*20
340
125
140
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)

7. =4*16
180
42
64
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)

8. =18*20
204
176
360
(x-y)^2

9. SQRT 100 -000 -000
95
55
1 -296
10 -000

10. odd + odd =
16
6 -561
Even
It becomes positive

11. =3^2
2
9
44
60

12. =3*10
30
76
117
234

13. =7*9
2
63
40
225

14. even x odd =
Even
51
512
400

15. =7*10
288
70
81
64

16. =8*16
128
18
(x-y)^2
6 -561

17. =5^4
153
15
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)
625

18. =3*19
32
180
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
57

19. =5*6
30
48
42
13

20. =3^4
171
Permutations ask for 'arraingements' Combinations ask for 'Groups'
64
81

21. =3*16
48
126
A*B (Multiply both probabilities)
400

22. =14*15
210
169
114
75

23. =11^2
6
240
192
121

24. =12*19
228
209
729
27

25. =6*8
48
10 -000 -000
208
128

26. =6*10
Side - Side - Side^2
46 -656
60
Base * Height

27. =9^4
6 -561
216
320
361

28. =5^3
10 -000
125
5
72

29. =25^2
3 -125
625
10
324

30. =14*14
165
2 -401
196
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s

31. When is a number divisible by 4?

32. =12*20
160
32
240
NO

33. Key to percent increase/decrease
121
24
72
Amount of increase/original amount = x/100 (Then cross multiply to find x)

34. =14*16
100 -000 -000
238
224
169

35. SQRT 36
204
216
225
6

36. =9*12
108
3:4:5 -- 5:12:13 -- 7:24:25
323
182

37. =10^3
1 -000
125
152
3

38. =13*19
Add their exponents (6^2 *6^3 = 6^5)
Multiply the numerators and put the product over the product of the denominators
57
247

39. =9^5
210
10
59 -049
1 -000

40. =8*8
100 -000
64
102
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)

41. Area of a circle?
Pr^2
100 -000
72
1.732050808

42. Exponents - Multiplying numbers with same base
52
625
Add their exponents (6^2 *6^3 = 6^5)
192

43. =4^5
A+B (Add both probabilities)
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
1 -024
343

44. =6*14
4
84
8
It becomes positive

45. =9*10
32
54
60
90

46. =10^8
100 -000 -000
25
114
2

47. 125^(1/3)
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
5
81
126

48. =7*11
56
171
90
77

49. =3*17
256
51
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
342

50. =6*12
133
72
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
64