4点6减4点6乘0点9(用简便计算,

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4点6减4点6乘0点9(用简便计算,4点6减4点6乘0点9(用简便计算,4点6减4点6乘0点9(用简便计算,4.6-4.6×0.9=4.6-4.6×(1-0.1)=4.6-4.6×1+4.6×0.1=

4点6减4点6乘0点9(用简便计算,
4点6减4点6乘0点9(用简便计算,

4点6减4点6乘0点9(用简便计算,
4.6-4.6×0.9
=4.6-4.6×(1-0.1)
=4.6-4.6×1+4.6×0.1
=4.6-4.6+0.46
=0.46

4.6-4.6×0.9
=4.6(1-0.9)
=4.6×0.1
=0.46

4.6-4.6x0.9
=4.6x(1-0.9)
=4.6x0.1
=0.46

4.6-4.6x0.9
=4.6x(1-0.9)
=4.6x0.1
=0.46

4.6-4.6x0.9
=4.6x(1-0.9)
=4.6x0.1
=0.46