(-3)²÷9+(-3)×5+2×(-2)²
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/30 04:40:09
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(-3)²÷9+(-3)×5+2×(-2)²
(-3)²÷9+(-3)×5+2×(-2)²
(-3)²÷9+(-3)×5+2×(-2)²
原式=9÷9-15+2x4
=1-15+8
=-6
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