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Two children have some nuts. After eating 20 nuts, they are left with 5 fewer nuts than they ate. How many nuts did they start with?

Fact Lab

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Interesting fact:

There are three basic types of rock: Igneous rocks form when magma solidifies, sedimentary rocks are made from compressed sediments, i. e. sand, and metamorphic rocks are created when either of the two is changed by heat or pressure.