直接写出得数．500÷125= 3.14×6= 5.4+46%= 36×25= ÷8=÷50%= 3.14×202= 7.82﹣4= 2﹣+3+= （+）×16=
直接写出得数．========
直接写出得数．============
计算．﹣++（+） 7﹣（﹣）．
直接写得数：+=﹣=﹣=﹣=+=﹣= 1﹣=+=﹣=+=+5= 5﹣=
直接写得数．+=+=﹣= 0.25×8= 0.9×0.2=﹣=+= 10﹣= 1.25×（0.8+0.08）= 0.25×3.2=
÷8=
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