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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. =6^4
3 -125
1 -296
2
95

2. Circumference of a circle?
285
2pr
1.414213562
16

3. =3*19
234
209
10 -000 -000 -000
57

4. =5*13
Difference in the y-coordinates over the difference in the x coodinates
Subtract the smallest number from the greatest number
65
9

5. Order of operations
285
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)
x:x^(1/3):2x
234

6. =25^2
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
266
625
8

7. =7*13
3
64
91
340

8. =5*5
49
25
2
168

9. =10^1
140
114
10
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)

10. Equation for a line?
1 -000
280
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
1 -000 -000 -000

11. =9*10
256
4
Will = 1 - Won't
90

12. =5*16
Line up the decimal points and proceed as usual
80
18
360

13. Pythagorean Triples (lengths)?
72
125
3:4:5 -- 5:12:13 -- 7:24:25
285

14. =4*11
306
44
32
4 -096

15. =3^3
27
(x-y)^2
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
49

16. SQRT 1 -024
32
224
3
x:x^(1/3):2x

17. Any number to the 0 power is?
361
52
Undefined
One (1)

18. =3*12
90
40
36
Multiply both fractions to get a common denominator add or subtract as usual

19. Dividing Decimals
Move the decimal to the right on both numbers until there is nothing to the right of the decimal
7 -776
4
216

20. =10^7
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
72
247
10 -000 -000

21. SQRT 625
99
25
One (1)
343

22. Exponents - Dividing numbers with same base
32
100
125
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)

23. =2^8
1.732050808
3:4:5 -- 5:12:13 -- 7:24:25
256
625

24. =9^4
6 -561
42
48
220

25. =7*9
63
64
32
Number of outcomes you want/total number of possible outcomes

26. =15*19
36
240
280
285

27. 8^(1/3)
2
35
27
10 -000

28. =16*19
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)
304
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
Undefined

29. =8*20
52
180
6
160

30. =7*10
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)
70
162
216

31. SQRT 169
256
154
13
102

32. =8*16
288
One (1)
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
128

33. =4*9
8
13
36
75

34. =3^4
285
255
81
234

35. =20^2
81
27
400
5

36. =3^3
95
16
27
240

37. =5^3
60
25
125
25

38. =4*15
24
60
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
3

39. How do you find the slope of a line?
6
Difference in the y-coordinates over the difference in the x coodinates
1 -296
156

40. =6*20
27
8
Itself
120

41. =9*20
33
180
72
196

42. =8*9
64
100 -000
96
72

43. Odds that at least one thing will happen?

44. even + even =
102
90
208
Even

45. =3*10
5
30
Amount of increase/original amount = x/100 (Then cross multiply to find x)
1 -296

46. SQRT 225
12
3
160
15

47. =8*10
220
80
187
60

48. =11*16
16
90
195
176

49. =6^1
10 -000
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
6
209

50. =3*5
12
120
15
28