直接写得数．
= 
= 0.6÷
= 380×0.01=
12.5%+0.875= 20×（1﹣75%）= 9.6÷0.3= 3.8﹣（1.7+1.8）=
1﹣
= 36×（
﹣
）=
直接写得数．= = 0.6÷= 380×0.01=
12.5%+0.875= 20×（1﹣75%）= 9.6÷0.3= 3.8﹣（1.7+1.8）=
1﹣= 36×（﹣）=
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