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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. =13*17
221
NO
51
204

2. =5*5
256
125
25
Even

3. 8^(1/3)
2
11
8
128

4. When is a number divisible by 3?
25
80
196
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)

5. =3*8
1.414213562
24
162
9

6. =10^4
168
81
512
10 -000

7. =7*12
A*B (Multiply both probabilities)
84
56
76

8. =5^3
114
125
28
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)

9. SQRT 36
Add their exponents (6^2 *6^3 = 6^5)
90
45
6

10. 512^(1/3)
1 -000 -000
8
11
256

11. =3*5
15
156
The direction of the inequality symbol changes
209

12. =12*20
39
104
3:4:5 -- 5:12:13 -- 7:24:25
240

13. =9^1
9
144
44
NO

14. =6*8
180
48
64
4 -096

15. =7*7
49
95
1 -000
48

16. =4*8
32
2
180
171

17. =6^5
1
7 -776
16
Permutations ask for 'arraingements' Combinations ask for 'Groups'

18. =15*20
27
243
300
1 -000 -000

19. =18*19
143
100
342
63

20. =6*14
121
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6
84
10 -000 -000

21. =8*13
104
Invert (reciprocal) the second fraction and multiply
2
132

22. multiplying decimals
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
60
6 -561
225

23. =25^2
729
625
48
100

24. SQRT 10 -000 -000 -000
104
4
(x-y)^2
100 -000

25. =4^2
5^(1/3)
16
Permutations ask for 'arraingements' Combinations ask for 'Groups'
Even

26. =4^3
7 -776
64
99
204

27. =5*6
210
Move the decimal to the right on both numbers until there is nothing to the right of the decimal
30
90

28. =13*16
1 -296
3 -125
4
208

29. Problem that asks you to choose a # of items to fill specific spots - when each spot is filled from a different source?
Combinations don't care about the order of the problems
Multiply the # of choices for each of the spots
One (1)
35

30. SQRT 1 -024
32
0 (any fraction with 0 on top is 0)
54
20

31. =12*14
247
Difference in the y-coordinates over the difference in the x coodinates
168
9

32. =19*19
361
64
400
209

33. SQRT 3
1.732050808
A*B (Multiply both probabilities)
306
78

34. =12*16
192
196
36
5

35. =9^2
225
40
171
81

36. =5^2
192
125
25
209

37. Factor x^2-2xy+y^2
238
(x-y)^2
84
280

38. =4*11
Even
44
64
Combinations don't care about the order of the problems

39. =7^3
42
25
Even
343

40. =3*14
104
216
42
512

41. Multiplying Fractions
84
Undefined
512
Multiply the numerators and put the product over the product of the denominators

42. =3*18
54
4 -096
625
256

43. Does x^6 - x^2 = x^4?
90
208
NO
96

44. SQRT 400
20
343
2
90

45. =7^4
156
2 -401
84
180

46. =20^2
80
Even
400
8

47. When is a number divisible by 3?
32
108
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
20

48. =12*18
216
343
320
114

49. How do you find the median of a set of numbers?
125
9
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
140

50. =6*15
36
64
90
64