Test your basic knowledge |

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. =8^1
125
8
27
182

2. =5*6
91
4
Even
30

3. Problem that asks you to choose a # of items to fill specific spots - when each spot is filled from a different source?
1 -296
Multiply the # of choices for each of the spots
27
91

4. SQRT 169
36
60
128
13

5. =8^2
64
180
125
Odd

6. =20^2
85
361
400
32

7. =3*14
42
27
125
81

8. SQRT 1 -024
Start with the number of permutations - that is the numerator(top). The Denominator is the number of combinations (eg 432*1)
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
32
120

9. =11*19
209
10 -000
68
171

10. Factor x^2-2xy+y^2
126
9
216
(x-y)^2

11. =6*13
66
144
2pr
78

12. Does x^6 - x^2 = x^4?
361
NO
36
Invert (reciprocal) the second fraction and multiply

13. =5*17
48
289
2
85

14. Odds that something doesn't happen?

15. =18*19
160
198
342
360

16. SQRT 2 -401
Will = 1 - Won't
It gets smaller
112
49

17. =7*16
135
1 -296
160
112

18. =8^3
78
512
216
198

19. =4*12
10 -000
Add or subtract the numbers on top and keep the same denominator
132
48

20. =7^3
343
Itself
6 -561
49

21. =4*20
36
247
Invert (reciprocal) the second fraction and multiply
80

22. =8*11
It gets smaller
88
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)
32

23. =15*15
225
80
96
It gets smaller

24. =5^3
125
168
42
15

25. Does x^2 + x^3 = x^5?
1 -296
NO
1 -000 -000
10 -000

26. =6^3
216
46 -656
323
9

27. =14*16
78
224
33
340

28. =17*18
2 -401
3
10
306

29. SQRT 400
20
45
120
27

30. =19*19
128
300
361
54

31. =6*6
48
36
168
80

32. Area of a triangle?
One (1)
252
(b*h)/2
108

33. =13*16
100
4
208
10

34. =14*14
196
64
195
64

35. =12*14
168
512
40
27

36. =15*20
6 -561
216
81
300

37. =10^1
162
128
10
100

38. Exponents - Raising a power to a power
11
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6
306
56

39. =11*14
154
225
65
It becomes positive

40. =4^5
1 -024
126
64
35

41. how do you find the range of a set of numbers?
4 -096
It gets smaller
Subtract the smallest number from the greatest number
2 -401

42. 512^(1/3)
8
152
54
729

43. =11*17
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
49
72
187

44. =4^1
Add their exponents (6^2 *6^3 = 6^5)
156
180
4

45. =20*20
400
91
221
12

46. Adding or subtracting fractions with different denominators
68
54
Multiply both fractions to get a common denominator add or subtract as usual
260

47. =6*18
4
9
108
343

48. 125^(1/3)
121
4
5
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken

49. If you raise a negative number to an even power - what happens to the number?
32
12
It becomes positive
135

50. SQRT 625
165
25
512
77