✨ Best Answer ✨
2×3.14×640/36
=3.14×640/18
=3.14×320/9
=31.4×32/9
=分子計算したやつ/9
=答え
自分だったらこうやります
✨ Best Answer ✨
2×3.14×640/36
=3.14×640/18
=3.14×320/9
=31.4×32/9
=分子計算したやつ/9
=答え
自分だったらこうやります
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