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Explain how you can use mental math to perform the following addition. 61,438+54,579+28,562

Explain how you can use mental math to perform the following addition. 61,438+54,579+28,562
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Explain how you can use mental math to perform the following addition. 61,438+54,579+28,562

User Robert Horvick
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partial adding or friendly numbers idk
User Jkasten
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