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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. =9*17
9
153
Multiply both fractions to get a common denominator add or subtract as usual
160

2. =3^5
108
6
3
243

3. =8^3
84
100 -000
512
Invert (reciprocal) the second fraction and multiply

4. SQRT 49
272
108
7
126

5. =12*16
512
192
182
8

6. When is a number divisible by 4?

7. =12*12
204
54
10
144

8. 4/0 =
57
6
Undefined
182

9. =3*6
28
32
18
0 (any fraction with 0 on top is 0)

10. =6^4
288
320
16
1 -296

11. =8*8
2
266
64
100

12. =9^3
729
81
228
126

13. =6*11
10
54
66
625

14. =8*9
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
81
72
12

15. Adding and Subtracting Decimals
Line up the decimal points and proceed as usual
Start with the number of permutations - that is the numerator(top). The Denominator is the number of combinations (eg 432*1)
64
The direction of the inequality symbol changes

16. =4*19
Odd
10 -000
119
76

17. =2^9
512
11
225
8

18. =15*16
24
10
240
81

19. =4*7
208
323
360
28

20. SQRT 2 -401
45
125
169
49

21. =8*16
128
2 -401
400
224

22. =2^3
81
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
8

23. SQRT 4
Even
187
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
2

24. =6*7
400
42
256
2pr

25. SQRT 36
8
Undefined
27
6

26. =5^4
156
16
625
171

27. how do you find the range of a set of numbers?
108
Subtract the smallest number from the greatest number
165
117

28. Any number to the 0 power is?
256
18
One (1)
52

29. =14*17
9
2 -401
238
2

30. =4^2
16
182
13
8

31. Circumference of a circle?
2pr
30
96
x:x^(1/3):2x

32. =4*16
64
3
3
120

33. Adding or subtracting fractions with the same denominator
160
112
Add or subtract the numbers on top and keep the same denominator
60

34. =12*17
50
28
204
729

35. =4^5
1 -024
625
56
36

36. =6*13
12
125
8
78

37. =14*19
48
Odd
266
10

38. =3^3
The direction of the inequality symbol changes
306
13
27

39. =12*19
228
8
56
343

40. =5*12
60
49
100 -000
1.732050808

41. =8*12
112
729
133
96

42. =12*14
20
32
168
Even

43. =4^3
234
If it is divisible by both 2 and 3 (318 is because it is even and the sum of 3+1+8 is divisible by 3)
64
1

44. SQRT 121
Multiply the # of choices for each of the spots
400
11
77

45. SQRT 3
42
16
1.732050808
If it is divisible by both 2 and 3 (318 is because it is even and the sum of 3+1+8 is divisible by 3)

46. =5*17
Line up the decimal points and proceed as usual
85
If it is divisible by both 2 and 3 (318 is because it is even and the sum of 3+1+8 is divisible by 3)
10

47. =20*20
3 -125
120
42
400

48. How do you find the mode of a set of numbers?
247
144
7
Pick the # that occurs most frequently

49. =5*15
If it is divisible by both 2 and 3 (318 is because it is even and the sum of 3+1+8 is divisible by 3)
75
100
126

50. =17*19
77
270
323
Invert (reciprocal) the second fraction and multiply