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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. =4*4
Pick the # that occurs most frequently
16
306
9

2. Circumference of a circle?
2pr
128
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
59 -049

3. =7*12
8
NO
266
84

4. =8*20
160
99
210
78

5. =2^8
Subtract the smallest number from the greatest number
100
169
256

6. SQRT 25
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
5
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
165

7. =6*16
96
84
90
1 -000 -000

8. When is a number divisible by 6?
0 (any fraction with 0 on top is 0)
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)
400
187

9. =10^7
204
80
10 -000 -000
Invert (reciprocal) the second fraction and multiply

10. SQRT 400
108
234
20
108

11. =6^2
126
36
340
48

12. odd + odd =
105
78
154
Even

13. =3^3
140
27
228
72

14. =3*18
361
54
180
243

15. =14*18
252
1 -024
225
512

16. 0/1 =
256
Multiply the numerators and put the product over the product of the denominators
0 (any fraction with 0 on top is 0)
270

17. Adding or subtracting fractions with the same denominator
54
Add or subtract the numbers on top and keep the same denominator
70
180

18. Distance Formula?
Rate * Time = Distance (Hint: Draw a chart)
33
70
340

19. Area of a parallelogram?
165
Base * Height
512
39

20. =6*17
55
0 (any fraction with 0 on top is 0)
45
102

21. =16*19
8
6 -561
304
Even

22. =18*18
2pr
324
It gets smaller
3:4:5 -- 5:12:13 -- 7:24:25

23. =3*13
The reciprocal of the same number to the positive power (y). (eg 3^-2 = 1/(3^2) = 1/9)
96
Odd
39

24. =8*13
2pr
104
8
114

25. If you raise a negative number to an even power - what happens to the number?
It becomes positive
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
1 -296
154

26. =15*19
Odd
55
285
512

27. What happens if you multiply or divide both sides of an inequality by a negative number?
32
The direction of the inequality symbol changes
16
342

28. =17*18
90
306
76
98

29. SQRT 10 -000
3
30
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
100

30. =13*15
90
252
195
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)

31. Any number to the negative power (y) is equal to?
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
81
The reciprocal of the same number to the positive power (y). (eg 3^-2 = 1/(3^2) = 1/9)
12

32. =12*17
1 -024
204
Move the decimal to the right on both numbers until there is nothing to the right of the decimal
35

33. =10^5
100 -000
132
Subtract the smallest number from the greatest number
252

34. =17*19
208
49
323
42

35. =7*9
128
4 -096
63
16

36. =3*10
136
10
30
A*B (Multiply both probabilities)

37. =7*15
57
54
198
105

38. =10^8
100 -000 -000
256
216
24

39. =5*20
16
100
84
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)

40. =7*8
204
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
30
56

41. =6*14
16
84
Add or subtract the numbers on top and keep the same denominator
228

42. odd x odd =
90
Odd
Won't = 1 - Will
81

43. =5^4
54
48
Even
625

44. =2^6
100
64
Difference in the y-coordinates over the difference in the x coodinates
182

45. =5^5
143
512
3 -125
54

46. SQRT 100 -000 -000
266
9
10 -000
169

47. =5*8
40
133
10 -000
30

48. =8*12
210
96
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
60

49. =14*14
16
60
196
60

50. =15^2
225
100 -000 -000
208
136