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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. =9*10
Itself
90
100
60

2. =8^1
272
8
160
221

3. =5^3
153
323
125
25

4. =12*18
119
216
36
6

5. Exponents - Raising a power to a power
Line up the decimal points and proceed as usual
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6
625
57

6. =9^3
729
180
0 (any fraction with 0 on top is 0)
342

7. =5*10
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
135
117
50

8. =3*16
48
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
512
1.414213562

9. 512^(1/3)
340
8
143
10 -000

10. =6*8
216
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
48
270

11. 4/0 =
Undefined
Add their exponents (6^2 *6^3 = 6^5)
126
240

12. =4^1
4
Multiply the numerators and put the product over the product of the denominators
Line up the decimal points and proceed as usual
Add their exponents (6^2 *6^3 = 6^5)

13. =17*19
187
81
323
(x-y)^2

14. =13*15
2 -401
195
7
x:x^(1/3):2x

15. =20*20
Multiply the # of choices for each of the spots
400
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
168

16. =4^3
64
Line up the decimal points and proceed as usual
9
216

17. =14*20
70
65
272
280

18. =18*20
60
Move the decimal to the right on both numbers until there is nothing to the right of the decimal
360
132

19. =4*13
Undefined
304
52
176

20. =15*19
81
285
x:x^(1/3):2x
255

21. =6*19
80
221
114
216

22. =6^6
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
216
128
46 -656

23. 216^(1/3)
169
6
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
256

24. odd x odd =
Odd
NO
80
1 -000

25. SQRT 2 -401
100
3
3
49

26. SQRT 10 -000 -000 -000
100 -000
(b*h)/2
50
1 -296

27. =9*18
228
It becomes positive
112
162

28. Right Isosceles triangle (lengths)?
The direction of the inequality symbol changes
7 -776
304
Side - Side - Side^2

29. =11*15
165
96
304
Subtract the smallest number from the greatest number

30. =6^2
36
The reciprocal of the same number to the positive power (y). (eg 3^-2 = 1/(3^2) = 1/9)
182
324

31. =4*6
78
24
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
121

32. Exponents - Dividing numbers with same base
40
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)
80
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

33. =3^6
48
x:x^(1/3):2x
729
It gets smaller

34. =5^4
Even
625
64
252

35. 27^(1/3)
The direction of the inequality symbol changes
27
3
285

36. =18*18
4
324
60
117

37. how do you find the range of a set of numbers?
96
247
Subtract the smallest number from the greatest number
Add or subtract the numbers on top and keep the same denominator

38. =7*10
3 -125
70
NO
8

39. =5*14
60
70
121
25

40. =3*20
81
60
1
160

41. =9*9
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
Itself
81
Multiply the # of choices for each of the spots

42. =4*11
3 -125
12
270
44

43. =6*16
340
It gets smaller
90
96

44. Dividing Decimals
72
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)
289
Move the decimal to the right on both numbers until there is nothing to the right of the decimal

45. =8*19
66
64
100 -000
152

46. 64^(1/3)
81
4
187
288

47. =8*10
1 -024
80
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
16

48. =11*13
119
1 -024
143
32

49. =6*6
9
160
36
20

50. =9*17
60
153
9
306