直接写得数．
4.5+7.6= 9﹣0.18= 0.9×9= 3.6÷9=
0.2×3.3= 1÷0.25= 0÷5.4= 3.89×0=
7.25+2.75= 10.8﹣8= 2.5×4= 80÷0.1=
直接写得数．
4.5+7.6= 9﹣0.18= 0.9×9= 3.6÷9=
0.2×3.3= 1÷0.25= 0÷5.4= 3.89×0=
7.25+2.75= 10.8﹣8= 2.5×4= 80÷0.1=
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