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. 729^(1/3)
10 -000
NO
9
140

2. =4^3
99
343
64
240

3. =4*7
72
5
28
252

4. =10^10
Line up the decimal points and proceed as usual
2 -401
10 -000 -000 -000
64

5. =12*14
76
168
16
64

6. =2^10
1 -024
156
64
361

7. =13*14
81
2pr
18
182

8. =11*11
176
121
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
27

9. Area of a parallelogram?
Base * Height
27
36
8

10. =4*5
208
20
25
108

11. =9*19
100
10 -000 -000 -000
171
112

12. =3*12
144
1.414213562
55
36

13. =6*18
35
108
49
64

14. =3^4
256
4 -096
81
165

15. =8*20
1 -000 -000 -000
4
152
160

16. =9*9
64
81
80
340

17. SQRT 6 -561
81
512
144
165

18. 4/0 =
252
Combinations don't care about the order of the problems
Undefined
24

19. =6^2
156
285
36
224

20. =3*20
60
It gets smaller
10 -000 -000
121

21. =13*20
6 -561
10 -000 -000
260
323

22. Adding or subtracting fractions with different denominators
Base * Height
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
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)
Multiply both fractions to get a common denominator add or subtract as usual

23. =5*17
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)
0 (any fraction with 0 on top is 0)
78
85

24. =16*20
512
10
320
Won't = 1 - Will

25. =17*20
3
It gets smaller
340
44

26. =13*17
221
15
11
13

27. =7*18
Invert (reciprocal) the second fraction and multiply
Even
27
126

28. Combinations: single source - order doesn't matter
Start with the number of permutations - that is the numerator(top). The Denominator is the number of combinations (eg 432*1)
300
1.732050808
80

29. Adding and Subtracting Decimals
Won't = 1 - Will
Pr^2
210
Line up the decimal points and proceed as usual

30. 0/1 =
72
27
0 (any fraction with 0 on top is 0)
32

31. =9*18
52
8
162
160

32. =10^5
2 -401
44
70
100 -000

33. =7*9
121
5
63
324

34. =9*10
80
90
54
9

35. =18*18
105
85
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
324

36. =14*19
266
238
36
100 -000

37. =4^6
10 -000
60
4 -096
144

38. =8*9
72
102
300
1 -000 -000

39. multiplying decimals
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
Even
729
18

40. =8*14
A+B (Add both probabilities)
25
125
112

41. =11*17
180
343
187
80

42. Problem that asks you to choose a # of items to fill specific spots - when each spot is filled from a different source?
729
Multiply the # of choices for each of the spots
140
60

43. =3*19
512
4
95
57

44. 27^(1/3)
Side - Side - Side^2
3
72
51

45. =13*16
208
196
56
5

46. Distance Formula?
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
225
Rate * Time = Distance (Hint: Draw a chart)
8

47. 512^(1/3)
x:x^(1/3):2x
8
204
90

48. SQRT 49
135
225
96
7

49. =9*17
306
144
153
77

50. =4*8
49
304
32
121