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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. =13*14
132
324
182
6

2. =3^3
36
Move the decimal to the right on both numbers until there is nothing to the right of the decimal
27
80

3. =3*17
343
100
Base * Height
51

4. =15*17
81
84
255
162

5. =7^1
243
7
72
10 -000

6. =15*20
300
25
It gets smaller
33

7. =5*9
119
3:4:5 -- 5:12:13 -- 7:24:25
45
Move the decimal to the right on both numbers until there is nothing to the right of the decimal

8. =9*20
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
72
225
180

9. =3*6
Multiply both fractions to get a common denominator add or subtract as usual
6
18
114

10. =9^4
64
56
6 -561
10 -000 -000

11. =10^5
238
81
100 -000
10

12. Pythagorean Triples (lengths)?
3:4:5 -- 5:12:13 -- 7:24:25
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6
252
0 (any fraction with 0 on top is 0)

13. =3*13
39
81
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
24

14. =6*10
44
361
60
171

15. =20*20
27
8
9
400

16. =7*9
63
32
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6
84

17. =7^3
9
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
1.414213562
343

18. If you raise a positive fraction that is less than 1 to a power - what happens to the fraction?
Base * Height
It gets smaller
126
20

19. =4^3
234
64
36
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s

20. 27^(1/3)
3
The direction of the inequality symbol changes
Won't = 1 - Will
Line up the decimal points and proceed as usual

21. =13*17
4
221
56
132

22. =12*16
198
208
81
192

23. =4*16
168
54
238
64

24. SQRT 225
729
It gets smaller
15
48

25. =8^1
9
8
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
Rate * Time = Distance (Hint: Draw a chart)

26. SQRT 9
3
56
27
Side - Side - Side^2

27. SQRT 1 -000 -000
360
1 -000
85
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)

28. =10^9
10 -000 -000
1 -000 -000 -000
135
104

29. =6*16
Multiply both fractions to get a common denominator add or subtract as usual
Won't = 1 - Will
96
30

30. =13*15
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)
320
195
512

31. =7*8
56
5
24
144

32. =3*18
54
24
The reciprocal of the same number to the positive power (y). (eg 3^-2 = 1/(3^2) = 1/9)
300

33. SQRT 36
64
180
25
6

34. SQRT 2 -401
(x-y)^2
Add their exponents (6^2 *6^3 = 6^5)
49
512

35. =6^6
220
46 -656
162
247

36. Odds that something doesn't happen?

37. =10^10
153
10 -000 -000 -000
Itself
NO

38. What is the difference between a permutation or a combination?

39. =8*17
187
340
NO
136

40. =12*15
25
16
44
180

41. =3^6
625
7 -776
729
12

42. Order of operations
Base * Height
Multiply both fractions to get a common denominator add or subtract as usual
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)
3

43. SQRT 625
25
78
45
100 -000

44. SQRT 729
136
225
27
1 -024

45. SQRT 81
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
64
33
9

46. Multiplying Fractions
0 (any fraction with 0 on top is 0)
100 -000
Multiply the numerators and put the product over the product of the denominators
Pick the # that occurs most frequently

47. =4^6
4 -096
Multiply the numerators and put the product over the product of the denominators
44
Will = 1 - Won't

48. =8*8
216
64
Add or subtract the numbers on top and keep the same denominator
33

49. 216^(1/3)
7
6
49
2

50. even + even =
5
Even
225
42