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. When is a number divisible by 4?

2. how do you find the range of a set of numbers?
Subtract the smallest number from the greatest number
49
72
80

3. =9*19
Pr^2
10
171
64

4. =7^4
95
2 -401
144
125

5. =9*10
154
140
270
90

6. =3*5
15
400
209
5

7. Probability that A or B will happen?
A+B (Add both probabilities)
3
100
100 -000

8. =6*16
96
5
16
1 -296

9. =3*13
187
280
Base * Height
39

10. =16*16
10
50
96
256

11. =13*16
208
729
96
Multiply both fractions to get a common denominator add or subtract as usual

12. When is a number divisible by 4?

13. If you raise a negative number to an odd power - what happens to the number?
400
46 -656
It gets smaller
88

14. =3*17
180
225
196
51

15. =6^3
400
216
42
5^(1/3)

16. =5*16
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
12
57
80

17. 8^(1/3)
2
Undefined
512
28

18. =11*19
121
16
81
209

19. =12*16
4
PEMDAS (parenthesis - Exponents - Multiplication - Division - Addition - Subtraction)
192
8

20. =10^8
39
100 -000 -000
Multiply both fractions to get a common denominator add or subtract as usual
156

21. =15*15
2 -401
225
40
15

22. =2^10
256
99
36
1 -024

23. =14*16
9
1 -024
224
225

24. =9^3
33
80
729
96

25. =3*16
80
8
Will = 1 - Won't
48

26. =2^1
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
2
64
Even

27. Exponents - Dividing numbers with same base
1.414213562
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)
234
45

28. =9*12
108
Even
240
7 -776

29. =10^7
7
90
10 -000 -000
27

30. =13*20
7 -776
64
260
126

31. SQRT 225
8
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)
343
15

32. =3^6
100 -000 -000
70
56
729

33. =6*9
36
2pr
54
289

34. Does (x^2 + y^2 + z^2)/(x^2 + y^2) = z^2?
Invert (reciprocal) the second fraction and multiply
78
NO
81

35. =6^2
36
144
306
91

36. =12*15
4
60
20
180

37. SQRT 10 -000
It becomes positive
The direction of the inequality symbol changes
100
156

38. SQRT 256
187
16
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

39. SQRT 100 -000 -000
10
95
10 -000
117

40. What happens if you multiply or divide both sides of an inequality by a negative number?
The direction of the inequality symbol changes
36
100 -000
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)

41. =7*8
56
234
1 -024
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)

42. =20^2
81
4
400
Subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4)

43. =6*19
4
2pr
5^(1/3)
114

44. =16*19
304
80
81
125

45. =3*10
180
343
15
30

46. =17*18
1 -000
209
8
306

47. =4*4
30
16
4
81

48. Adding and Subtracting Decimals
247
78
128
Line up the decimal points and proceed as usual

49. =12*19
36
228
85
1 -000

50. =3^4
9
81
240
256