递等式计算(能简则简)
问题描述:
递等式计算(能简则简)
48000÷64 7900÷(25×79)×4 380×52+380×25+77×620
26-(12.64-6.6)-7.36
答得又快又好的提高悬赏
答
0.32+0.68X3.5 2.5X(0.4+0.8)X12.5 =0.16X2+0.16X4X3.5 =(2.5X0.4)X12.5+2.5X(0.8X12.5) =0.16X2+0.16X14 =12.5+25 =0.16X16 =37.5=2.5652X7.5-490X0.75-7.5 2.5X(1.6/2.5/0.04)=52X7.5-49X7.5-7.5X1 =2.5X(1.6/...