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Of the people in Tori's apartment building, 9 have been to Wyoming. 7 people have been to Idaho. 3 people have been to both Wyoming and Idaho. How many people have been to Wyoming or Idaho or both?

Hint: copy and complete the Venn diagram below to help you solve the problem.

I have been to Wyoming
I have been to Idaho

people
 
Fifth-grade skills Show expanded view
Place value and number sense
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Multiply decimals
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