赚现金
计算下面各题,能简算的必须简算.3.5×6.2+3.8×3.5 6.25÷1.25÷0.8.
用简便方法计算.404×25= 25×125×4×8= 8×137×125= 17×36+17×64=
用简便方法计算1.2×2.5+2.8×2.5 4.8×2.5.
简便计算:778×999+666×333.
简算.102×0.36.
下面的计算对吗?如果错的话,把它改正过来.(1)101×32=32=(101+1)×32=102×32=3264(2)125×37×8=125×8+37=1000+37=1370.
用简便方法计算.(25×37)×4 27×16+73×16.
用简便方法计算 .
用简便方法计算.36×25 102×24 35×16×125 137×15﹣15×37.
用简便方法计算36+92+164+208 26+(89+74) 25×17×2×4 3.6﹣1.28+3.09.
53×46+54×53.
计算,能简算的要简算4%×99+0.04 75%×25+175× (+)×40.
用简便方法计算下面各题.43.6+9.8+6.4 17.3×0.25×8 2.31×1.5+1.5×7.69.
怎样简便就怎样算.4.3+0.98+0.7= 5.27﹣3.9﹣0.1= 8.44﹣(5.44+2.8)= 4.9+0.1﹣4.9+0.1=
= = = =
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