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. =19*20
380
18
A+B (Add both probabilities)
81

2. =3^6
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
729
3 -125
289

3. =3^1
238
18
3
6

4. =7^3
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
260
343
9

5. =5*7
143
35
9
96

6. =6*13
3
24
78
195

7. =5*9
45
Even
120
6

8. =4*16
266
182
64
27

9. If you raise a negative number to an odd power - what happens to the number?
It gets smaller
84
39
1 -296

10. Circumference of a circle?
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)
25
90
2pr

11. =13*14
182
400
81
153

12. =2^2
1 -000
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
4
15

13. =5^3
125
2
2 -401
Multiply the # of choices for each of the spots

14. SQRT 121
1.414213562
9
11
Side - Side - Side^2

15. Exponents - Multiplying numbers with same base
96
NO
Add their exponents (6^2 *6^3 = 6^5)
35

16. SQRT 256
228
16
126
33

17. What happens if you multiply or divide both sides of an inequality by a negative number?
6
Invert (reciprocal) the second fraction and multiply
270
The direction of the inequality symbol changes

18. =3*17
Line up the decimal points and proceed as usual
51
72
24

19. =14*18
56
252
234
16

20. =6*8
90
32
48
64

21. 4/0 =
The direction of the inequality symbol changes
76
Undefined
152

22. =8^2
64
55
11
78

23. =6*10
60
1.414213562
729
Pick the # that occurs most frequently

24. =14*19
1.414213562
266
33
208

25. even + odd =
Odd
152
76
A+B (Add both probabilities)

26. =2^8
0 (any fraction with 0 on top is 0)
32
108
256

27. =11*20
48
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
7
220

28. =5^1
343
5
60
45

29. =9*12
Undefined
Itself
108
36

30. =8*8
66
512
64
99

31. If you raise a negative number to an even power - what happens to the number?
80
5
It becomes positive
60

32. =13*19
247
0 (any fraction with 0 on top is 0)
102
3:4:5 -- 5:12:13 -- 7:24:25

33. =12*17
78
x:x^(1/3):2x
204
3

34. =7*9
80
63
66
76

35. =9*15
135
Even
45
225

36. =2^7
27
128
512
Start with the number of permutations - that is the numerator(top). The Denominator is the number of combinations (eg 432*1)

37. =13*16
625
208
400
1

38. =3*6
18
7
8
1 -000

39. =9*11
A+B (Add both probabilities)
60
99
20

40. =9^2
15
81
125
180

41. =2^9
32
30
512
Invert (reciprocal) the second fraction and multiply

42. Equation for a line?
Odd
y=mx+b where b is the y-intercept (the point which crosses the y-axis) m is the slope of the line - and x & y are the coordinates of some point on that line
15
1.732050808

43. =6*6
228
80
95
36

44. =13*13
10 -000 -000 -000
5
169
304

45. =5*17
152
20
85
9

46. =9*13
114
100
117
1

47. 4/0 =
Undefined
9
117
84

48. =6*18
35
It gets smaller
Even
108

49. =16*16
196
256
180
8

50. SQRT 6 -561
10
136
81
10