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. =5*6
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
10 -000
30
Move the decimal to the right on both numbers until there is nothing to the right of the decimal

2. =20*20
Odd
57
60
400

3. =6^1
6
144
0 (any fraction with 0 on top is 0)
25

4. =3^1
32
77
133
3

5. =12*16
Even
68
98
192

6. =11*17
4
187
Even
80

7. =15*17
255
15
90
153

8. =3*12
112
100
289
36

9. Circumference of a circle?
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
7
90
2pr

10. Order of operations
360
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)
306
10 -000 -000

11. SQRT 3
1.732050808
72
1 -024
3

12. =5^3
39
125
95
(x-y)^2

13. =9^3
6
216
729
Won't = 1 - Will

14. =5*17
512
8
85
27

15. Exponents - Dividing numbers with same base
2
120
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)
160

16. SQRT 16
240
72
4
112

17. Area of a circle?
Pr^2
36
36
70

18. =9*13
5
112
117
36

19. SQRT 64
Start with the number of permutations - that is the numerator(top). The Denominator is the number of combinations (eg 432*1)
8
90
60

20. =13*18
33
13
224
234

21. =15*18
2
70
270
126

22. =12*15
90
180
28
It becomes positive

23. Any number to the 0 power is?
320
One (1)
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
45

24. SQRT 100 -000 -000
4 -096
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
Line up the decimal points and proceed as usual
10 -000

25. =9*14
1 -024
126
4 -096
1.414213562

26. =9^3
729
70
152
90

27. =3*5
59 -049
42
15
3

28. Area of a triangle?
(b*h)/2
125
76
60

29. =10^1
10
4
400
Multiply the numerators and put the product over the product of the denominators

30. =3*16
90
108
48
Even

31. =6^4
400
1 -296
288
169

32. =8^4
4 -096
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
285
Start with the number of permutations - that is the numerator(top). The Denominator is the number of combinations (eg 432*1)

33. =11*12
72
33
132
46 -656

34. =13*14
6
182
9
125

35. =15^2
65
The reciprocal of the same number to the positive power (y). (eg 3^-2 = 1/(3^2) = 1/9)
225
33

36. =5*16
140
75
80
81

37. =2^6
It becomes positive
64
176
36

38. How do you tell if it's a permutation or combination?

39. =9^2
81
45
100
99

40. Multiplying Fractions
96
40
49
Multiply the numerators and put the product over the product of the denominators

41. If you raise a negative number to an odd power - what happens to the number?
81
81
It gets smaller
400

42. =9^4
6 -561
238
60
1

43. =12*14
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
168
15
80

44. 512^(1/3)
8
100 -000 -000
5
11

45. =8*9
112
72
49
285

46. =12*12
144
380
16
54

47. =7*11
77
125
136
48

48. =5*12
60
5
84
255

49. 30:60:90 Right Triangle (Lenghts)
x:x^(1/3):2x
99
Undefined
64

50. =2^3
64
52
8
126