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Math Quiz: Practice Your Algebra and Your Mind...

 Ready for another math challenge? These days sitting at home can rot anyone's mind... unless you keep it busy with some fun challenges. We believe that with a little thought anyone can beat this test, but you may need to focus to beat all 15 questions!
 
 
150% = ?
3/5
3/2
4/3
1/2
 
 
5 + 4 (5 – 3) = ?
13
12
11
7
9
 
 
When my father was 31 I was 8. Now he is twice as old as me. How old am I?
The difference in age is 23 years, so the son must be 23 if the father is twice as old as he.
23
46
33
43
 
 
¼ ÷ ¼ = ?
1
16
4
1/2
 
 
What is the square root of 169?
13
16
19
17
33
 
 
1 – 1 ÷ 1 + 1 – 1 ÷ 1 = ?
1
0
2
3
-1
 
 
You have 1000, add 40, add 1000, add 30, add another 1000, add 20, add 1000 again, and finally add 10. What is the result?
4,100
4,000
3,800
3,900
 
 
½ of ½ of ½ of 10 = ?
1.5
1.75
2.5
1.25
0.5
 
 
Complete the following series: 7,645 - 5,764 - 4,576 - ????
6,457
5,467
7,465
7,654
 
 
If seven people meet each other and each shakes hands only once with each of the others, how many handshakes will there have been?
The first person shakes the hand of 6 others, the second person shakes the hand of 5 remaining people, the third person shakes the hand of 4 remaining people, the fourth person shakes the hand of 3 remaining people, the 5th person shakes the hand of 2 remaining people and the sixth person shakes the hand of 1 remaining person. 6+5+4+3+2+1=21
21
28
42
36
 
 
9 ÷ 3 (-1 + 4) = ?
9
1
3
0
 
 
15 ÷ 5 + 15 ÷ 5 = ?
6
5
10
15
 
 
16 ÷ 2 (8 – 6) = ?
16
4
2
8
 
 
20 ÷ 4 x 10 ÷ 5 = ?
10
20
25
15
 
 
There are 10 red socks and 10 blue socks, you are in pitch darkness and you're looking for 2 matching socks. What is the smallest number of socks you must take?
3
6
4
9
You FAILED...
 
This isn't very hard math, so if you failed this test we recommend reading a bit about math online, or doing some of our other algebra and math quizzes on the site so you can get back your math skills. If you'd like to know where you got them wrong, look below for answers.
You Passed!
 
Good job! You passed, if not with flying colors, at least with a decent score, showing you haven't forgotten your algebra lessons after all. Maybe you'd like to get even better, and for that have a look at your mistakes below and our answers, or try to take the test again without peeking!
You Excelled!
 
You haven't forgotten a thing, have you? Your math and algebra are as strong as the day you left school. Terrific job and a terrific score, well above the average of those who took this quiz before you. Way to go!
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