Test your basic knowledge |

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. =5^1
128
5
3:4:5 -- 5:12:13 -- 7:24:25
162

2. SQRT 100
3
10
729
25

3. =6^3
75
216
60
20

4. =18*19
204
255
342
247

5. =7^3
6
100 -000
343
Pr^2

6. =7*14
NO
10 -000 -000
78
98

7. =12*12
56
48
144
180

8. If you raise a positive fraction that is less than 1 to a power - what happens to the fraction?
It gets smaller
49
The direction of the inequality symbol changes
64

9. =9^5
54
59 -049
Pick the # that occurs most frequently
A+B (Add both probabilities)

10. SQRT 3
27
7
20
1.732050808

11. =9*9
81
32
10 -000
40

12. SQRT 1 -296
45
36
One (1)
187

13. =9*15
32
144
270
135

14. SQRT 100 -000 -000
100 -000 -000
Multiply both fractions to get a common denominator add or subtract as usual
304
10 -000

15. =6*6
60
1 -000 -000 -000
56
36

16. How do you find the slope of a line?
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)
Difference in the y-coordinates over the difference in the x coodinates
126
42

17. =3*17
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller - stop when all the places are taken
27
56
51

18. =9*14
168
126
0 (any fraction with 0 on top is 0)
266

19. =13*17
60
153
64
221

20. =10^10
10 -000 -000 -000
7 -776
192
121

21. =5*7
30
16
Permutations ask for 'arraingements' Combinations ask for 'Groups'
35

22. SQRT 1 -024
1.732050808
512
36
32

23. =4*13
Add their exponents (6^2 *6^3 = 6^5)
52
119
343

24. =15*20
238
64
300
60

25. 729^(1/3)
64
9
68
4

26. =5*13
221
65
10 -000 -000 -000
Undefined

27. =8*20
105
187
160
12

28. If you raise a negative number to an odd power - what happens to the number?
30
36
85
It gets smaller

29. =6*20
9
51
120
64

30. =2^8
9
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)
A+B (Add both probabilities)
256

31. How do you find the mode of a set of numbers?
Pick the # that occurs most frequently
49
125
1 -000 -000 -000

32. =10^4
187
240
NO
10 -000

33. =10^2
Odd
Even
45
100

34. =16*16
256
One (1)
16
224

35. Exponents - Multiplying numbers with same base
108
304
Add their exponents (6^2 *6^3 = 6^5)
4

36. =9*20
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)
180
Ignor decimal points and multiply the two numbers - then count the digits to the right of the decimal points in the original numbers and place the decimal so there are the same number of digits to the right of the decimal
10

37. =3*6
Add their exponents (6^2 *6^3 = 6^5)
209
18
81

38. =4*18
72
24
It becomes positive
20

39. =15*15
80
5
3
225

40. =6*7
Base * Height
42
52
99

41. =3*12
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)
36
100
A*B (Multiply both probabilities)

42. =3*5
15
1 -296
180
0 (any fraction with 0 on top is 0)

43. =4^1
4
1 -000 -000
2pr
10 -000 -000 -000

44. =9*11
168
216
99
Arrainge #s from least to greatest and take the middle number or the average of the two middle #s

45. =8*13
156
10 -000 -000 -000
20
104

46. =18*18
324
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)
625
76

47. SQRT 121
52
11
NO
380

48. even + odd =
256
Multiply the numerators and put the product over the product of the denominators
Odd
59 -049

49. =3*10
30
1
90
50

50. =3*13
39
3:4:5 -- 5:12:13 -- 7:24:25
64
105