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. =9*11
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
25
99
3

2. =3*5
4
15
30
NO

3. =7*19
72
5
209
133

4. Area of a parallelogram?
51
119
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
Base * Height

5. =17*17
6
289
512
98

6. Any number to the first power is?
25
225
Itself
60

7. =7*17
119
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
340
39

8. SQRT 49
25
7
8
100

9. =9*15
135
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
400
340

10. =14*15
16
512
20
210

11. =9^2
225
81
25
7

12. SQRT 4 -096
66
64
729
9

13. =9*9
196
81
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
Odd

14. =4*14
144
360
56
512

15. 729^(1/3)
144
324
9
66

16. Area of a triangle?
Amount of increase/original amount = x/100 (Then cross multiply to find x)
(b*h)/2
128
2pr

17. =4*6
13
135
4 -096
24

18. =13*20
1 -000
260
36
7

19. How do you find the median of a set of numbers?
Combinations don't care about the order of the problems
NO
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
13

20. =6^1
28
6
46 -656
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)

21. =6*7
Amount of increase/original amount = x/100 (Then cross multiply to find x)
400
42
112

22. =6*12
9
72
59 -049
102

23. =6*14
84
343
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
64

24. =15*19
36
285
187
80

25. =5*5
25
6 -561
(x-y)^2
9

26. Adding or subtracting fractions with the same denominator
44
Add or subtract the numbers on top and keep the same denominator
125
7

27. =8^3
15
210
95
512

28. =11*17
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
3
187
Undefined

29. =5^3
90
1 -000
98
125

30. =12*12
144
8
4
243

31. Any number to the negative power (y) is equal to?
The reciprocal of the same number to the positive power (y). (eg 3^-2 = 1/(3^2) = 1/9)
224
Amount of increase/original amount = x/100 (Then cross multiply to find x)
70

32. =11*20
1 -000 -000 -000
220
10 -000
152

33. =5*6
27
49
30
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)

34. SQRT 2
96
1.414213562
216
54

35. =10^6
1 -000 -000
256
3:4:5 -- 5:12:13 -- 7:24:25
512

36. =5*18
42
90
24
84

37. =3^3
27
171
280
36

38. =3^3
24
81
4
27

39. =15*16
126
2pr
240
64

40. =3*9
27
140
It gets smaller
625

41. =8^4
4 -096
64
252
80

42. SQRT 1 -000 -000
55
30
154
1 -000

43. When is a number divisible by 3?
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
3
It becomes positive

44. =5*16
80
117
216
Undefined

45. SQRT 25
13
Odd
5
80

46. How do you find the slope of a line?
A*B (Multiply both probabilities)
Difference in the y-coordinates over the difference in the x coodinates
4
9

47. =14*18
256
252
144
180

48. =14*17
24
Invert (reciprocal) the second fraction and multiply
238
104

49. =3*19
57
51
128
512

50. =6*11
1 -024
400
102
66