Find the area of the shaded figure

Express result to the accuracy of 2 decimal.
Category: 
Correct Answers: 
17
Points: 
1

Calculate 256 + 256

FUNNY MATH: Calculate 256 + 256 :)
Category: 
Correct Answers: 
11
Points: 
3

Which is a winning combination of digits?

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Category: 
Correct Answers: 
16
Points: 
1

Find the area of the shaded figure

Express result to the accuracy of 3 decimal.
Category: 
Correct Answers: 
2
Points: 
10

Calculate 3444+46

FUNNY MATH: Calculate 3444+46 :)
Category: 
Correct Answers: 
14
Points: 
1
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