
0.72÷(0.4×9)脱式计算?
2个回答
展开全部
0.72÷(0.4×9)
=0.72÷3.6
=0.2
或
0.72÷(0.4×9)
=0.72÷0.4÷9
=1.8÷9
=0.2
6.5×4.3+3.5×4.3
=(6.5+3.5)×4.3
=10×4.3
=43
=0.72÷3.6
=0.2
或
0.72÷(0.4×9)
=0.72÷0.4÷9
=1.8÷9
=0.2
6.5×4.3+3.5×4.3
=(6.5+3.5)×4.3
=10×4.3
=43
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