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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. =7*17
10 -000
6
119
7 -776

2. =6*9
54
135
25
2pr

3. SQRT 729
A*B (Multiply both probabilities)
81
512
27

4. SQRT 2
400
1.414213562
70
10

5. =8^2
8
1 -000 -000
Even
64

6. =4*15
9
27
6
60

7. Odds that something doesn't happen?

8. =13*14
182
256
512
40

9. =4*5
136
20
221
16

10. =5^4
32
625
36
2

11. =11*15
100 -000
165
144
Number of outcomes you want/total number of possible outcomes

12. =3*5
56
84
100 -000
15

13. =5*11
324
27
70
55

14. =3*12
36
132
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
100

15. SQRT 100 -000 -000
10 -000
220
Invert (reciprocal) the second fraction and multiply
30

16. =13*19
247
NO
5
81

17. =7*11
81
Multiply the numerators and put the product over the product of the denominators
25
77

18. Dividing Fractions
A*B (Multiply both probabilities)
361
Invert (reciprocal) the second fraction and multiply
46 -656

19. =3*17
225
51
64
Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6

20. =12*13
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)
Undefined
156
7

21. =3*6
18
Itself
49
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)

22. 343^(1/3)
48
2
7
8

23. 8^(1/3)
2
27
Itself
49

24. =4*14
57
228
56
Won't = 1 - Will

25. =8*16
It becomes positive
2 -401
5
128

26. =10^9
63
1 -000 -000 -000
Multiply both fractions to get a common denominator add or subtract as usual
10 -000

27. Does (x^2 + y^2 + z^2)/(x^2 + y^2) = z^2?
46 -656
NO
1.414213562
63

28. =4^2
16
56
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)
6 -561

29. =8^4
4 -096
16
6 -561
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)

30. =1^3
512
1
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
228

31. =4*10
40
Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller
81
154

32. Order of operations
133
0 (any fraction with 0 on top is 0)
9
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)

33. =4*13
10 -000
Move the decimal to the right on both numbers until there is nothing to the right of the decimal
4 -096
52

34. =5*19
46 -656
625
95
3

35. =15*17
132
255
81
512

36. Exponents - Dividing numbers with same base
63
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)
5
9

37. =3^3
234
33
16
27

38. =17*17
289
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
117

39. When is a number divisible by 4?

40. =3*11
33
243
8
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)

41. =7^1
60
289
7
1.414213562

42. =8^1
3:4:5 -- 5:12:13 -- 7:24:25
10 -000
8
77

43. =10^3
59 -049
81
1 -000
108

44. =16*18
9
4 -096
288
Amount of increase/original amount = x/100 (Then cross multiply to find x)

45. =4*12
Will = 1 - Won't
24
48
144

46. Multiplying Fractions
Multiply the numerators and put the product over the product of the denominators
72
Even
Rate * Time = Distance (Hint: Draw a chart)

47. =6*10
162
60
0 (any fraction with 0 on top is 0)
Move the decimal to the right on both numbers until there is nothing to the right of the decimal

48. =8*10
143
512
80
4

49. 0/1 =
108
15
256
0 (any fraction with 0 on top is 0)

50. 512^(1/3)
100
24
8
140