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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. =3*5
15
114
49
16

2. =14*20
Line up the decimal points and proceed as usual
280
100
1 -024

3. =4^3
64
256
20
112

4. When is a number divisible by 4?

5. What happens if you multiply or divide both sides of an inequality by a negative number?
1 -296
7
360
The direction of the inequality symbol changes

6. =6*17
102
8
4
343

7. =2^9
9
187
512
216

8. odd x odd =
152
54
252
Odd

9. =13*19
247
132
Amount of increase/original amount = x/100 (Then cross multiply to find x)
Line up the decimal points and proceed as usual

10. =6*9
54
208
46 -656
121

11. =5*16
80
729
4 -096
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s

12. =4^3
39
64
15
234

13. =2^6
81
33
64
(b*h)/2

14. =16*19
6 -561
304
96
7

15. =8^3
255
8
512
12

16. Any number to the 0 power is?
68
One (1)
80
3

17. Adding or subtracting fractions with the same denominator
Add or subtract the numbers on top and keep the same denominator
Undefined
195
10

18. =7^4
176
256
2
2 -401

19. =12*20
Start with the number of permutations - that is the numerator(top). The Denominator is the number of combinations (eg 432*1)
240
256
187

20. =6*16
96
195
70
64

21. =6^3
216
Undefined
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)

22. SQRT 3
A+B (Add both probabilities)
49
16
1.732050808

23. =6^2
(b*h)/2
36
182
The direction of the inequality symbol changes

24. =7*11
Even
169
77
The reciprocal of the same number to the positive power (y). (eg 3^-2 = 1/(3^2) = 1/9)

25. =15^2
72
125
9
225

26. =6^4
NO
15
1 -024
1 -296

27. SQRT 49
1 -000
7
512
1 -024

28. =10^3
165
1 -000
Move the decimal to the right on both numbers until there is nothing to the right of the decimal
252

29. =17*17
289
256
48
16

30. =6*15
Add their exponents (6^2 *6^3 = 6^5)
55
6 -561
90

31. =10^2
128
25
100
88

32. =14*17
12
238
64
340

33. =6*8
70
48
8
Base * Height

34. =6^3
68
24
216
125

35. Any number to the first power is?
16
32
Itself
72

36. even x even =
54
10 -000
Even
343

37. =15*16
68
240
Even
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)

38. Does x^6 - x^2 = x^4?
11
729
NO
3

39. =6^1
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)
6
81
Even

40. SQRT 36
4
1 -296
6
100

41. =14*18
252
204
16
1 -000

42. 343^(1/3)
Even
(b*h)/2
36
7

43. =3*18
59 -049
91
It gets smaller
54

44. Multiplying Fractions
285
136
Multiply the numerators and put the product over the product of the denominators
Odd

45. =10^1
323
36
10
27

46. =7*17
8
119
8
Even

47. SQRT 169
13
66
196
266

48. SQRT 64
8
320
126
16

49. =3*13
Undefined
Base * Height
154
39

50. =6*14
30
11
84
144