0.125除以【3.6除以80】乘0。9
=1/8×80÷3.6×0.9
=10×0.9÷3.6
=9÷3.6
=2.5
0.125除以【3.6除以80】乘0。9
=1/8÷(3.6÷80)×0.9
=1/8÷(36/10×1/80)×9/10
=1/8÷9/400×9/10
=1/8×400/9×9/10
=5
0.125除以【3.6除以80】乘0。9
=0.125×80÷3.6×0.9
=10×0.9÷3.6
=9÷3.6
=2.5
先算0.125乘以80，再算0.9除以3.6，再把两个结果相乘
0.125除以【3.6除以80】乘0。9
=1/8÷3.6×80×0.9
=1/8×80×0.9÷3.6
=10×1/4
=5/2
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