13.5十16.5×1.2如何简便计算?
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方法一、
13.5+16.5×1.2
=13.5+16.5×(1+0.2)
=13.5+16.5+3.3
=30+3.3
=33.3。
方法二、
13.5+16.5×1.2
=30-16.5+16.5x1.2
=30+16.5x(1.2-1)
=30+16.5x0.2
=30+3.3
=33.3。
13.5+16.5×1.2
=13.5+16.5×(1+0.2)
=13.5+16.5+3.3
=30+3.3
=33.3。
方法二、
13.5+16.5×1.2
=30-16.5+16.5x1.2
=30+16.5x(1.2-1)
=30+16.5x0.2
=30+3.3
=33.3。
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简便计算如下:
13.5+16.5×1.2
=13.5+16.5×(1+0.2)
=13.5+16.5×1+16.5×0.2
=13.5+16.5+3.3
=30+3.3
=33.3
13.5+16.5×1.2
=13.5+16.5×(1+0.2)
=13.5+16.5×1+16.5×0.2
=13.5+16.5+3.3
=30+3.3
=33.3
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13.5十16.5×1.2如何简便计算?
13.5十16.5×1.2
=13.5+16.5x(1+0.2)
=13.5+16.5+16.5x0.2
=30+3.3
=33.3
13.5十16.5×1.2
=13.5+16.5x(1+0.2)
=13.5+16.5+16.5x0.2
=30+3.3
=33.3
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可以把数字拆分一下:
13.5+16.5x1.2
=13.5+16.5x(1+0.2)
=13.5+16.5x1+16.5x0.2
=30+3.3
=33.3
13.5+16.5x1.2
=13.5+16.5x(1+0.2)
=13.5+16.5x1+16.5x0.2
=30+3.3
=33.3
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