5.7-0.45÷1.5×3如何简算
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5.7-0.45÷1.5×3如何简算
5.7-0.45÷1.5×3
=5.7-0.3*3
=5.7-0.9
=5.7-1+0.1
=4.8
先算1.5x3=4.5,然后用0.45÷4.5=0.1,5.7-0.1=5.6
5.7-0.45÷1.5×3 =5.7-0.3*3 =5.7-0.9 =5.7-1+0.1 =4.8
5.7-0.45÷1.5×3如何简算
5.7-0.45÷1.5×3
=5.7-0.3*3
=5.7-0.9
=5.7-1+0.1
=4.8
先算1.5x3=4.5,然后用0.45÷4.5=0.1,5.7-0.1=5.6
5.7-0.45÷1.5×3 =5.7-0.3*3 =5.7-0.9 =5.7-1+0.1 =4.8