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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. =5^1
Multiply both fractions to get a common denominator add or subtract as usual
126
Permutations ask for 'arraingements' Combinations ask for 'Groups'
5

2. =8*15
192
120
153
125

3. =3*9
144
85
75
27

4. How do you find the median of a set of numbers?
57
(b*h)/2
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
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s

5. =3^5
243
Even
28
120

6. =3*14
320
36
306
42

7. =5^3
125
187
204
238

8. =13*19
84
195
247
96

9. 343^(1/3)
Even
Subtract the smallest number from the greatest number
7
46 -656

10. SQRT 169
13
60
Won't = 1 - Will
224

11. =5^5
66
Amount of increase/original amount = x/100 (Then cross multiply to find x)
126
3 -125

12. =2^6
64
119
Multiply both fractions to get a common denominator add or subtract as usual
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

13. =6^4
5
0 (any fraction with 0 on top is 0)
342
1 -296

14. =16*20
320
30
169
247

15. =2^4
121
152
16
Even

16. =4*12
48
2
49
270

17. SQRT 121
11
3
Itself
5^(1/3)

18. =4*4
60
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6
729
16

19. =3*10
30
3
729
Invert (reciprocal) the second fraction and multiply

20. odd x odd =
64
512
Odd
7 -776

21. =8^3
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
100
57
512

22. =18*19
60
342
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
272

23. SQRT 100
16
10
66
208

24. =4^5
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
(x-y)^2
81
1 -024

25. =3*3
44
180
9
84

26. =13*16
208
49
135
156

27. =10^3
104
112
1 -000
15

28. =1^3
5^(1/3)
64
1
36

29. SQRT 100 -000 -000
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)
10 -000
78
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)

30. =16*18
288
1 -000
10
Won't = 1 - Will

31. =3*13
27
209
39
120

32. SQRT 81
1 -024
9
77
52

33. =9*15
135
220
4
36

34. =8*17
240
136
7
210

35. =5*10
Odd
50
72
16

36. =9*10
90
7
225
32

37. =19*19
361
4 -096
7 -776
36

38. =5*17
44
15
85
59 -049

39. When is a number divisible by 4?

40. =4*17
240
1 -000 -000 -000
323
68

41. =7*16
247
112
Add or subtract the numbers on top and keep the same denominator
1 -024

42. =3^3
32
27
Invert (reciprocal) the second fraction and multiply
255

43. Adding or subtracting fractions with the same denominator
Add or subtract the numbers on top and keep the same denominator
9
36
289

44. =4*14
56
192
45
Rate * Time = Distance (Hint: Draw a chart)

45. Distance Formula?
225
Rate * Time = Distance (Hint: Draw a chart)
324
Pick the # that occurs most frequently

46. SQRT 64
8
45
Rate * Time = Distance (Hint: Draw a chart)
121

47. =9*9
81
27
133
65

48. =4^3
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
64
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
42

49. =9*18
The reciprocal of the same number to the positive power (y). (eg 3^-2 = 1/(3^2) = 1/9)
1 -296
400
162

50. SQRT 9
88
3
196
100 -000