口算.0.9+0.4= 9﹣0.7= 0.36+0.54= 1﹣0.26=3.6+0.4= 1.29﹣O.29= 0.74+0.26= 0.57﹣0.5=2.8+1.12= 6.2+1.8= 2.8﹣2.3= 1.3﹣0.6=
用竖式计算并验算. 1.2×3.45= 91.8÷0.24=
2.6×1.8= 8.5×0.24= 1.152÷9.6= 15.6÷0.24=
列竖式计算,并验算 8.02×3.5= 26.88÷5.6=
列竖式计算.(带☆的要验算,带*的要保留两位小数) ①0.27×0.45=②☆3.05×2.4=③0.51÷0.12=④*6.24÷0.4=
用竖式计算. 13.6×0.35= 91.2÷0.24=