直接写出得数1.2×0.5= 0÷10= += 1﹣=1÷= ×= （1﹣）×16= =
计算下面各题．+﹣+++﹣﹣（+）
﹣=+=﹣=﹣=+=﹣= 1﹣=﹣=﹣=+=
+++．
递等式计算+=+=﹣=﹣= 1﹣=+﹣= 1﹣+．
直接写出得数．===== 1﹣=
+
= 1﹣
=
= 
×
= （1﹣
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﹣
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﹣（
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= 1﹣
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．
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﹣
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