直接写得数1﹣0.32= 1÷0.25= 0.01÷0.1÷0.1= 10.2+8=1.4×0.5= 4.5×0.2÷4.5×0.2= 0.125×8= 0.5÷2×0.5×2=
直接写得数．+=﹣======= 6：15= 0.25：0.4=：= 0.6：=
直接写出得数．×8= 10×= 21×=÷=（﹣）×28= 10÷10%= 0÷=+=÷= 3.14×8=
直接写出得数．=========
直接写出得数．÷= 0×=÷= 1+=×=÷=×=÷=
直接写得数．×8=÷== 6÷=÷= 21×= 1﹣÷=×=
+
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﹣
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= 6：15= 0.25：0.4=
：
= 0.6：
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×8= 10×
= 21×
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÷
=（
﹣
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+
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÷
= 3.14×8=
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= 1+
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×
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×
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×8=
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= 6÷
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= 1﹣
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