直接写出下面各题得数．418+205= 24×5= 7.5+4.9= 16.8÷0.4= 0.1÷10=÷= ﹣×0= （+）×= 1.25×0.3×0.8= 4﹣1÷4﹣．
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直接写得数．========
﹣．
+=+=﹣=+=++=+﹣=﹣﹣=﹣+=
直接写出结果．+=×10%= 3.6÷12= 80%×80%=×4÷×4= 15÷1%=﹣+﹣=
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﹣×0= （
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= 1.25×0.3×0.8= 4﹣1÷4﹣
．÷= ﹣×0= （+）×= 1.25×0.3×0.8= 4﹣1÷4﹣．
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×10%= 3.6÷12= 80%×80%=
×4÷
×4= 15÷1%=
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