我会用竖式计算116×28= 708×25= 63×180= 136÷17= 584÷26= 370÷39=
怎样简便怎样算．++=+++=﹣（+）=
．
﹣=+=+=﹣=﹣=﹣=+=﹣= 1﹣﹣=+=
+=﹣= 7.2÷0.3=﹣1=+0.2= 0.54÷9=﹣=﹣=﹣=+= 1÷0.25=+= 0.67+0.3= 0.38×2= 8.1÷0.09= 2﹣= 12×0.5= 2.5×0.6=
计算．（能简算的要简算）﹣（+）+（﹣）．
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﹣（
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﹣
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﹣
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﹣
﹣
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﹣
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﹣
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﹣
= 7.2÷0.3=
﹣1=
+0.2= 0.54÷9=
﹣
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﹣
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﹣
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= 1÷0.25=
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= 12×0.5= 2.5×0.6=
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