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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*12
4
342
84
306

2. =2^6
64
36
66
49

3. Exponents - Dividing numbers with same base
10
48
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)
90

4. =11*11
121
288
27
Even

5. =10^6
320
1 -000 -000
It gets smaller
It gets smaller

6. =3*19
57
117
Invert (reciprocal) the second fraction and multiply
42

7. =5^2
25
42
114
The direction of the inequality symbol changes

8. Exponents - Multiplying numbers with same base
Add their exponents (6^2 *6^3 = 6^5)
100 -000 -000
234
16

9. SQRT 10 -000 -000 -000
44
46 -656
100 -000
3:4:5 -- 5:12:13 -- 7:24:25

10. =9*14
126
5
1 -000
9

11. Problem that asks you to choose a # of items to fill specific spots - when each spot is filled from a different source?
Pr^2
Multiply the # of choices for each of the spots
81
4 -096

12. 216^(1/3)
80
6
133
300

13. =7*11
247
27
77
320

14. =9*18
Multiply the # of choices for each of the spots
162
234
3

15. =11*15
Will = 1 - Won't
252
165
Multiply the numerators and put the product over the product of the denominators

16. even x even =
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
64
256
Even

17. =3*13
39
64
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6
80

18. =4*20
270
289
Even
80

19. =15*16
27
240
260
81

20. =8*14
512
112
Undefined
256

21. =8*12
72
Multiply both fractions to get a common denominator add or subtract as usual
3
96

22. =5*20
100
36
108
176

23. =4^3
Subtract the smallest number from the greatest number
64
7
11

24. =4*11
60
285
44
125

25. =7*10
36
70
168
343

26. =3*4
320
Itself
12
1 -024

27. =6^3
126
288
100
216

28. SQRT 100
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
64
49
10

29. If you raise a positive fraction that is less than 1 to a power - what happens to the fraction?
45
It gets smaller
Even
46 -656

30. =6*13
78
104
156
59 -049

31. 125^(1/3)
144
247
45
5

32. =6^4
361
100
1
1 -296

33. =9^3
288
729
65
380

34. =16*19
304
300
128
8

35. SQRT 6 -561
8
81
NO
100

36. =13*17
140
36
221
15

37. =7*16
112
77
153
20

38. Probability that A or B will happen?
100 -000
16
A+B (Add both probabilities)
Move the decimal to the right on both numbers until there is nothing to the right of the decimal

39. =6*19
114
32
216
6

40. =7*9
120
171
90
63

41. =7*7
63
49
168
25

42. =11*13
256
143
Multiply the numerators and put the product over the product of the denominators
64

43. =8*8
44
100 -000
140
64

44. =9*19
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)
Line up the decimal points and proceed as usual
15
171

45. =6*15
65
90
3:4:5 -- 5:12:13 -- 7:24:25
340

46. =2^8
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
256
49
Even

47. =5*9
171
4 -096
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
45

48. =3*9
27
114
1 -000 -000 -000
48

49. SQRT 121
238
42
11
180

50. What happens if you multiply or divide both sides of an inequality by a negative number?
The direction of the inequality symbol changes
66
80
59 -049