48x1.08+1.2x56.8的简便算法
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48x1.08+1.2x56.8的简便算法48x1.08+1.2x56.8的简便算法48x1.08+1.2x56.8的简便算法48x1.08+1.2x56.8=48x1.08+48÷40x56.8=4
48x1.08+1.2x56.8的简便算法
48x1.08+1.2x56.8的简便算法
48x1.08+1.2x56.8的简便算法
48x1.08+1.2x56.8
=48x1.08+48÷40x56.8
=48x1.08+48x(56.8÷40)
=48x1.08+48x1.42
=48x(1.08+1.42)
=48x2.5
=24x2x2.5
=24x5
=120
48x1.08+48x 1.42
=48x(1.08+1.42)
=12
48*1+48*0.08+1*56.8+0.2*56.8=744.8