4.5×1.1×0.2简便计算

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4.5×1.1×0.2简便计算

4.5×1.1×0.2简便计算
4.5×1.1×0.2简便计算

4.5×1.1×0.2简便计算
=4.5×0.2×1.1
=0.9×1.1
=0.99

(4.5+0.2)X1

4.5*1.1*0.2
=4.5*0.2*1.1
=0.9*1.1
=0.99

=4.5x0.2x1.1
=0.9x1.1
=0.99

先用4.5乘以0.2然后再算后面的