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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. =2^2
32
80
4
323

2. =5*6
625
49
30
176

3. Dividing Decimals
Move the decimal to the right on both numbers until there is nothing to the right of the decimal
95
64
120

4. =8*16
128
8
153
4 -096

5. =3^3
Itself
1 -000
8
27

6. 0/1 =
85
It gets smaller
0 (any fraction with 0 on top is 0)
63

7. =12*14
288
176
198
168

8. 216^(1/3)
400
6
208
266

9. =13*20
Difference in the y-coordinates over the difference in the x coodinates
Pr^2
260
16

10. =4*20
80
99
1 -000 -000
Multiply both fractions to get a common denominator add or subtract as usual

11. Problem that asks you to choose a # of items to fill specific spots - when each spot is filled from a different source?
Multiply the # of choices for each of the spots
15
42
72

12. Right Isosceles triangle (lengths)?
108
4
Side - Side - Side^2
84

13. =9*20
2pr
180
36
108

14. =6*16
512
96
100 -000 -000
88

15. SQRT 3
3
1.732050808
96
105

16. Exponents - Multiplying numbers with same base
50
45
Add their exponents (6^2 *6^3 = 6^5)
180

17. =7^2
272
81
A*B (Multiply both probabilities)
49

18. =4*4
16
162
20
40

19. =8*14
625
729
112
10 -000

20. =16*18
5^(1/3)
108
288
64

21. =12*20
5
152
240
48

22. =3*19
64
56
57
144

23. =11*15
It gets smaller
165
121
24

24. Distance Formula?
Rate * Time = Distance (Hint: Draw a chart)
Add or subtract the numbers on top and keep the same denominator
1 -000
224

25. =11*18
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
8
6
198

26. =12*19
2
10 -000
228
80

27. =6*12
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
72
9
252

28. =10^8
260
100 -000 -000
625
6

29. =13*13
169
216
Undefined
4 -096

30. =8^3
56
208
512
16

31. =10^5
400
100 -000
8
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)

32. Adding and Subtracting Decimals
104
60
Line up the decimal points and proceed as usual
100

33. =7*11
77
154
140
8

34. Circumference of a circle?
104
2pr
165
133

35. =6*15
114
Add or subtract the numbers on top and keep the same denominator
64
90

36. =7*20
84
99
140
255

37. =12*18
304
216
100
272

38. =2^5
216
32
65
Will = 1 - Won't

39. =9*16
144
96
11
10 -000 -000 -000

40. If you raise a negative number to an odd power - what happens to the number?
56
220
It gets smaller
117

41. =5*11
It gets smaller
Line up the decimal points and proceed as usual
140
55

42. =11*20
260
The reciprocal of the same number to the positive power (y). (eg 3^-2 = 1/(3^2) = 1/9)
220
15

43. =3*13
Add or subtract the numbers on top and keep the same denominator
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
169
39

44. =12*16
192
35
266
7

45. When is a number divisible by 3?
76
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
1
44

46. =6^2
66
152
95
36

47. =3^4
3
81
6
70

48. SQRT 10 -000 -000 -000
512
64
100 -000
208

49. =1^3
168
1
35
380

50. even x odd =
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)
Even
400
40