题目内容
【题目】脱式计算下面各题,能简算的要简算。
7.26-6.3×0.2 0.49×101 12.5×0.74×0.08
【答案】6;49.49;0.74
【解析】
7.26-6.3×0.2 0.49×101 12.5×0.74×0.08
=7.26-1.26 =0.49×(100+1) =12.5×0.08×0.74
=6 =0.49×100+0.49×1 =1×0.74
=49+0.49 =0.74
=49.49
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题目内容
【题目】脱式计算下面各题,能简算的要简算。
7.26-6.3×0.2 0.49×101 12.5×0.74×0.08
【答案】6;49.49;0.74
【解析】
7.26-6.3×0.2 0.49×101 12.5×0.74×0.08
=7.26-1.26 =0.49×(100+1) =12.5×0.08×0.74
=6 =0.49×100+0.49×1 =1×0.74
=49+0.49 =0.74
=49.49