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Mathematics, 06.11.2021 03:40 vanderrage

Sammi practiced piano for 23 minutes on Monday, 37 minutes on Tuesday and 42 minutes on Thursday. Her piano teacher wants to know about how many minutes she spent practicing total. Which of these shows how she can estimate the answer by rounding the addends?

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Sammi practiced piano for 23 minutes on Monday, 37 minutes on Tuesday and 42 minutes on Thursday. He...
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