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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. =4*10
40
4
128
90

2. =10^1
Pick the # that occurs most frequently
10
Undefined
Subtract the smallest number from the greatest number

3. SQRT 16
28
4
96
24

4. =12*13
240
15
156
361

5. When is a number divisible by 3?
Invert (reciprocal) the second fraction and multiply
209
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
8

6. =13*20
260
289
343
125

7. SQRT 121
11
156
400
625

8. SQRT 100
243
135
10
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)

9. =4*8
Even
32
10
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)

10. =6^1
6 -561
266
60
6

11. =12*15
180
192
81
Combinations don't care about the order of the problems

12. SQRT 169
Line up the decimal points and proceed as usual
1 -000
13
512

13. =9*14
171
240
126
240

14. =10^2
100
Undefined
25
64

15. =4*20
Even
49
80
324

16. =18*20
135
7
80
360

17. =8*13
104
224
1 -000 -000
Difference in the y-coordinates over the difference in the x coodinates

18. =7^3
343
45
Itself
255

19. =7*15
81
306
105
9

20. 0/1 =
0 (any fraction with 0 on top is 0)
128
64
198

21. =16*19
6
45
304
Multiply both fractions to get a common denominator add or subtract as usual

22. =8*18
40
2pr
144
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

23. Circumference of a circle?
112
18
2pr
Odd

24. Probability that A or B will happen?
Difference in the y-coordinates over the difference in the x coodinates
A+B (Add both probabilities)
70
1 -024

25. =6^4
9
216
1 -296
80

26. 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
Won't = 1 - Will
270
512

27. Any number to the 0 power is?
192
One (1)
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
51

28. =3*19
57
80
36
9

29. =6*6
11
90
36
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6

30. =8^3
512
24
156
Itself

31. =13*17
121
55
100
221

32. =18*19
Pick the # that occurs most frequently
55
343
342

33. =5*16
260
9
20
80

34. =6*8
7
76
Permutations ask for 'arraingements' Combinations ask for 'Groups'
48

35. =4^6
4 -096
288
343
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

36. 8^(1/3)
380
228
2
9

37. SQRT 225
120
Pick the # that occurs most frequently
15
81

38. SQRT 100 -000 -000
10
512
10 -000
80

39. =12*20
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
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)
59 -049
240

40. =4*13
90
52
48
x:x^(1/3):2x

41. =7^2
10 -000 -000 -000
49
176
39

42. =3*13
220
39
15
81

43. =17*18
85
Permutations ask for 'arraingements' Combinations ask for 'Groups'
64
306

44. When is a number divisible by 6?
100 -000 -000
A*B (Multiply both probabilities)
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)
228

45. =6^2
72
3:4:5 -- 5:12:13 -- 7:24:25
121
36

46. =13*14
182
256
2
105

47. =6*19
114
100 -000
112
9

48. =3*5
171
7
10
15

49. =5^3
16
125
60
300

50. =13*15
1.414213562
195
27
20