Mathematics, 02.03.2021 21:40 FlyingPig14

A lionfish has 13 spines on its back, 2 near the middle of its underside, and 3 on its underside near its tail. Write two different number sentences to find how many spines a lionfish has in all. What property did you use?

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A lionfish has 13 spines on its back, 2 near the middle of its underside, and 3 on its underside nea...