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. Area of a triangle?
95
144
154
(b*h)/2

2. =16*20
1 -296
195
91
320

3. =5*17
225
Undefined
85
46 -656

4. =4*8
55
32
Even
234

5. =7*15
105
24
64
Amount of increase/original amount = x/100 (Then cross multiply to find x)

6. =6*9
54
198
120
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)

7. =17*17
40
144
289
180

8. =2^3
36
105
304
8

9. =5*16
3 -125
125
One (1)
80

10. SQRT 81
343
90
4
9

11. =12*19
NO
39
228
95

12. SQRT 729
3
27
88
36

13. =8^4
4 -096
Number of outcomes you want/total number of possible outcomes
Even
90

14. =6*16
96
85
121
160

15. =3*9
90
27
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)
1 -024

16. Order of operations
45
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)
304
70

17. =3*16
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6
48
36
182

18. SQRT 121
176
11
10 -000
102

19. =9*10
9
4 -096
90
342

20. =12*16
192
252
(x-y)^2
70

21. =14*19
3
266
1.414213562
187

22. =25^2
NO
Even
240
625

23. =4^3
80
63
64
Rate * Time = Distance (Hint: Draw a chart)

24. =17*18
240
306
20
128

25. even + odd =
Won't = 1 - Will
Odd
121
729

26. Probability that A or B will happen?
256
A+B (Add both probabilities)
1 -024
114

27. =14*15
72
210
240
60

28. Combinations: single source - order doesn't matter
Start with the number of permutations - that is the numerator(top). The Denominator is the number of combinations (eg 432*1)
64
12
9

29. Distance Formula?
156
25
Rate * Time = Distance (Hint: Draw a chart)
24

30. What is the difference between a permutation or a combination?

31. Exponents - Dividing numbers with same base
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)
49
625
88

32. SQRT 625
27
70
25
1 -000 -000 -000

33. 4/0 =
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
195
64
Undefined

34. =10^5
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
64
100 -000
2

35. =8*19
176
84
152
144

36. =9*18
169
324
162
180

37. =11*15
16
165
72
187

38. =15*18
3
It becomes positive
320
270

39. Circumference of a circle?
32
120
2pr
27

40. =9*19
3:4:5 -- 5:12:13 -- 7:24:25
260
171
Pick the # that occurs most frequently

41. =5*11
55
99
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)

42. =2^9
152
Undefined
85
512

43. =14*17
320
238
80
224

44. =8^1
99
8
228
81

45. =2^8
119
256
(x-y)^2
60

46. Equation for a line?
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
360
1
Add their exponents (6^2 *6^3 = 6^5)

47. even x odd =
Even
125
81
216

48. =5*8
40
NO
12
2 -401

49. Permutations: single source - order matters
81
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
133

50. =3^3
70
27
36
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)