math lesson for smart people

Find the number which replaces the questionmark. There is a pattern between the numbers in circles, can you see it? Use your math skills to solve this brain teaser.

created by Niki

Brain teaser - Picture Logic Puzzle - math lesson for smart people - Find the number which replaces the questionmark. There is a pattern between the numbers in circles, can you see it? Use your math skills to solve this brain teaser.

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take a look at the picture from top left side and read it "per line"

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Correct answer: 12.

If you read the numbers per lines, you get:

6+3=9
9+7=16
16+1=17
17+??=29

math lesson for smart people

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