
0.22x0.99 0.33x0.34简便写法
1个回答
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0.22x0.99+ 0.33x0.34
=0.22x3x0.33+0.33x0.34
=0.33x(0.22x3+0.34)
=0.33x(0.66+0.34)
=0.33x1
=0.33
=0.22x3x0.33+0.33x0.34
=0.33x(0.22x3+0.34)
=0.33x(0.66+0.34)
=0.33x1
=0.33
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