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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. even x odd =
238
168
Even
625

2. =14*16
4
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
224
96

3. =12*14
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
64
5^(1/3)
168

4. =3*3
6
100
9
56

5. 729^(1/3)
Even
It gets smaller
6 -561
9

6. SQRT 2
1.414213562
126
Odd
NO

7. Permutations: single source - order matters
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
85
Start with the number of permutations - that is the numerator(top). The Denominator is the number of combinations (eg 432*1)
64

8. =6^3
9
240
156
216

9. =3*19
57
(x-y)^2
154
9

10. =13*16
45
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
208
3 -125

11. =7*17
119
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)
20
300

12. =2^8
54
4 -096
256
16

13. 343^(1/3)
243
7
Move the decimal to the right on both numbers until there is nothing to the right of the decimal
70

14. =12*18
128
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
216
Won't = 1 - Will

15. =5*17
112
100 -000
85
10 -000

16. SQRT 49
Number of outcomes you want/total number of possible outcomes
7
243
0 (any fraction with 0 on top is 0)

17. =4*18
300
72
40
238

18. =10^1
10 -000
400
10
84

19. =4*9
125
36
8
Even

20. SQRT 625
10 -000 -000
25
144
260

21. SQRT 4 -096
512
64
1
(b*h)/2

22. =7*20
165
140
1 -024
105

23. =6^3
216
10 -000 -000 -000
306
Odd

24. =5*19
64
95
144
The direction of the inequality symbol changes

25. =13*14
154
x:x^(1/3):2x
182
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s

26. Circumference of a circle?
380
2pr
16
16

27. =15*16
243
180
27
240

28. =6*10
136
The reciprocal of the same number to the positive power (y). (eg 3^-2 = 1/(3^2) = 1/9)
60
48

29. =11*11
126
121
81
7

30. SQRT 64
1 -296
187
108
8

31. =3*18
Combinations don't care about the order of the problems
4
300
54

32. =12*15
180
9
Add or subtract the numbers on top and keep the same denominator
153

33. SQRT 169
4 -096
72
24
13

34. Factor x^2-2xy+y^2
512
54
42
(x-y)^2

35. =8*16
6
128
30
Even

36. =4*13
27
1 -296
121
52

37. Order of operations
36
0 (any fraction with 0 on top is 0)
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)
60

38. even x even =
25
Pr^2
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
Even

39. =14*19
266
285
NO
198

40. =8*10
One (1)
80
342
5

41. odd + odd =
56
Even
380
Add their exponents (6^2 *6^3 = 6^5)

42. =9*16
180
1
144
70

43. =3*17
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)
32
112
51

44. Odds that something doesn't happen?

45. Dividing Decimals
Move the decimal to the right on both numbers until there is nothing to the right of the decimal
126
Rate * Time = Distance (Hint: Draw a chart)
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

46. =3^5
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s
243
54
64

47. Does x^2 + x^3 = x^5?
NO
48
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
Odd

48. =12*20
39
240
Won't = 1 - Will
285

49. 8^(1/3)
165
2
128
280

50. =25^2
20
100
Move the decimal to the right on both numbers until there is nothing to the right of the decimal
625