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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. SQRT 16
4
33
400
96

2. =3*8
Even
80
24
8

3. =3*19
39
100 -000 -000
57
A+B (Add both probabilities)

4. =4^5
1 -024
10 -000 -000
12
Undefined

5. 30:60:90 Right Triangle (Lenghts)
x:x^(1/3):2x
Odd
16
289

6. how do you find the range of a set of numbers?
Subtract the smallest number from the greatest number
228
40
234

7. =15^2
260
128
225
66

8. When is a number divisible by 4?

9. Distance Formula?
Rate * Time = Distance (Hint: Draw a chart)
5
Pr^2
84

10. =12*13
63
180
32
156

11. =14*17
16
60
238
27

12. =10^9
8
1 -000 -000 -000
8
Pr^2

13. =6^4
1 -296
8
266
27

14. =12*16
343
Invert (reciprocal) the second fraction and multiply
729
192

15. Permutations: single source - order matters BUT only for a selection
288
8
Multiply the # of choices for each of the spots
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken

16. Area of a circle?
16
27
Pr^2
81

17. =9*18
24
400
162
8

18. =13*18
8
234
8
8

19. =8*16
300
7 -776
128
Undefined

20. =5*19
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
12
95
240

21. =5*12
72
77
Multiply both fractions to get a common denominator add or subtract as usual
60

22. =5*20
100
100 -000 -000
7
Difference in the y-coordinates over the difference in the x coodinates

23. SQRT 49
1 -000 -000 -000
42
1 -296
7

24. =6*13
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
6 -561
78
143

25. =10^10
144
10 -000 -000 -000
64
3

26. =9^3
A*B (Multiply both probabilities)
729
85
121

27. =7*8
56
Undefined
243
84

28. =8^3
60
512
x:x^(1/3):2x
Odd

29. Does x^2 + x^3 = x^5?
2
NO
117
15

30. =3*11
342
One (1)
33
39

31. =11*20
81
220
10 -000
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s

32. SQRT 169
169
13
1.414213562
27

33. =15*19
285
15
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
5

34. =12*17
204
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
400
9

35. =7*7
45
154
49
6

36. 0/1 =
7 -776
0 (any fraction with 0 on top is 0)
360
209

37. =15*15
121
225
324
285

38. odd + odd =
54
Even
90
81

39. =3*3
24
9
7
343

40. =3*5
225
15
54
42

41. =9*13
Line up the decimal points and proceed as usual
361
10
117

42. =7*9
63
84
51
162

43. =4*7
Amount of increase/original amount = x/100 (Then cross multiply to find x)
28
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
8

44. Odds that at least one thing will happen?

45. SQRT 36
9
44
6
196

46. =4^4
256
9
2
324

47. =8*12
96
60
Number of outcomes you want/total number of possible outcomes
Multiply both fractions to get a common denominator add or subtract as usual

48. =16*20
Add or subtract the numbers on top and keep the same denominator
8
320
Undefined

49. =3^1
Odd
3
343
210

50. =17*17
121
400
64
289