Have you ever tried to add or subtract fractions that have different denominators? It’s tricky, right? Join Ms. Susanna Post in this lesson to learn how to solve these types of challenging problems!

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Teachers can use these tools to promote discussions and help students move from concrete to abstract understanding of concepts.

TikTok users are sharing an addition problem that seems easy enough at first glance, but people’s mental arithmetic skills get tripped up by the same part of it. All you have to do is add up the ...