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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. =2^3
32
81
8
198

2. =8^1
125
8
180
171

3. =15*18
2
6 -561
165
270

4. SQRT 3
1.732050808
4
3 -125
0 (any fraction with 0 on top is 0)

5. =4*14
27
56
144
18

6. =6^2
36
342
225
NO

7. SQRT 2 -401
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
5
Even
49

8. =4*9
1 -296
(b*h)/2
64
36

9. =8*19
152
243
9
54

10. =2^1
64
2
216
72

11. =8*16
25
128
Won't = 1 - Will
80

12. =9*19
171
9
Line up the decimal points and proceed as usual
187

13. =9^2
Permutations ask for 'arraingements' Combinations ask for 'Groups'
100 -000
105
81

14. =5*10
343
50
Even
272

15. =13*18
Odd
234
49
256

16. =4^6
4 -096
1
1 -000
It becomes positive

17. =3*9
27
216
13
100

18. =3*15
45
59 -049
625
95

19. =2^6
18
57
64
48

20. =6*11
66
72
Will = 1 - Won't
13

21. =4*4
16
Line up the decimal points and proceed as usual
54
72

22. =5*6
30
Won't = 1 - Will
81
The direction of the inequality symbol changes

23. =5*12
Odd
60
176
40

24. =3*18
Multiply the numerators and put the product over the product of the denominators
54
Add their exponents (6^2 *6^3 = 6^5)
255

25. =14*18
4
A*B (Multiply both probabilities)
160
252

26. =6*12
8
24
72
304

27. =3*5
121
64
15
209

28. =17*18
306
3:4:5 -- 5:12:13 -- 7:24:25
Subtract the smallest number from the greatest number
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

29. =6^5
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6
126
68
7 -776

30. =8*12
8
63
7
96

31. =10^7
32
10 -000 -000
99
7

32. =6^1
280
NO
6
180

33. =5*18
64
90
2 -401
32

34. SQRT 10 -000 -000 -000
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)
285
4 -096
100 -000

35. SQRT 16
4
64
260
187

36. SQRT 4 -096
64
91
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
76

37. =11^2
36
66
8
121

38. =14*14
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
126
304
196

39. =9*9
128
210
81
45

40. When is a number divisible by 3?
121
2
64
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)

41. Adding or subtracting fractions with the same denominator
Add or subtract the numbers on top and keep the same denominator
NO
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
8

42. =15*17
255
32
126
160

43. =5^5
3 -125
128
25
3

44. SQRT 1 -000 -000
33
40
126
1 -000

45. even x odd =
84
Even
Pick the # that occurs most frequently
343

46. =7*7
6
85
49
512

47. =11*13
143
10
112
48

48. Order of operations
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)
81
136
45

49. =3^3
121
9
153
27

50. =11*18
729
10 -000
198
44