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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. =7*13
224
80
0 (any fraction with 0 on top is 0)
91

2. =7*17
100
119
Difference in the y-coordinates over the difference in the x coodinates
225

3. =3*15
143
100
220
45

4. =5*8
28
40
Even
Base * Height

5. =3*11
1
4
45
33

6. =3^1
3
512
288
729

7. =17*17
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)
54
289
36

8. Odds that at least one thing will happen?

9. =9*13
117
144
56
70

10. =5*6
64
50
30
100 -000

11. SQRT 49
143
Add their exponents (6^2 *6^3 = 6^5)
7
126

12. How do you find the median of a set of numbers?
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
64
15
9

13. =10^4
90
10 -000
240
Itself

14. =4^6
7
0 (any fraction with 0 on top is 0)
9
4 -096

15. =2^3
228
8
238
1 -000 -000

16. =7*14
112
400
98
51

17. =8^3
40
260
512
It becomes positive

18. How do you find the slope of a line?
NO
27
Difference in the y-coordinates over the difference in the x coodinates
56

19. =25^2
625
306
2pr
65

20. =5*10
50
156
6
Even

21. =2^9
224
512
117
Odd

22. SQRT 1 -000 -000
x:x^(1/3):2x
80
120
1 -000

23. even + even =
Even
Permutations ask for 'arraingements' Combinations ask for 'Groups'
60
32

24. =6*16
96
Odd
119
121

25. If you raise a negative number to an even power - what happens to the number?
216
Even
320
It becomes positive

26. =6*12
64
75
72
NO

27. Permutations: single source - order matters BUT only for a selection
400
125
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
2 -401

28. SQRT 2 -401
5
49
51
Itself

29. =11*18
198
304
192
323

30. SQRT 100
Move the decimal to the right on both numbers until there is nothing to the right of the decimal
One (1)
10
60

31. =15*15
7
143
72
225

32. 27^(1/3)
Even
3
100 -000
16

33. =16*18
16
4
56
288

34. 8^(1/3)
80
2
342
25

35. =5*13
125
4
65
Permutations ask for 'arraingements' Combinations ask for 'Groups'

36. Equation for a line?
45
2
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
289

37. =5*17
85
6
9
Even

38. =6*7
42
300
A*B (Multiply both probabilities)
32

39. =5*16
Side - Side - Side^2
80
A+B (Add both probabilities)
216

40. =8^4
6
143
4 -096
625

41. Distance Formula?
Rate * Time = Distance (Hint: Draw a chart)
Even
171
216

42. =8*10
80
48
9
1.732050808

43. =4*5
20
1 -024
8
81

44. =18*19
285
342
72
20

45. =8*19
Add or subtract the numbers on top and keep the same denominator
152
625
105

46. SQRT 400
256
228
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
20

47. =4*4
1 -000 -000 -000
90
Amount of increase/original amount = x/100 (Then cross multiply to find x)
16

48. =11*20
Won't = 1 - Will
4
216
220

49. =18*20
Pr^2
72
360
51

50. =4*17
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
13
68
70