### hard number puzzle with answer

2+9=711 14+6=820 17+11=628 12+3=??? This number puzzle can be really hard. Look at the picture and numbers and try to answer it correctly. Is the number pattern obvious at first sight?

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### hard math riddle for geniuses

This one is really tough. Are you the expert to solve this math puzzle with dinosaur & pterodactyl? If this is true, please comment below and give us your answer!

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### number in the sequence

could you find the next number in the sequence? Have a look at the picture and decide the correct answer for this puzzle. Share it below, thanks :)

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### Equations system

It was based on a Maths Olympics' exercise in my region. I have adapted for 12 years old kids.

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**31 solved this**