下面各题怎样简便就怎样计算①5.02﹣1.37﹣2.63 ②③.
列竖式计算 0.58×0.24 21÷24.
口算.2.5×0.4= 1.5×2= 0.7×7= 7.3+0.3=0.53﹣0.3= 1.8×0.5= 0.9×0.01= 0.23×3=0.56÷8= 1.23×3= 1.6÷0.04= 7.3+2.7=2﹣1.2= 7.8÷6= 8.4÷0.21= 8.4÷0.7=
用竖式计算下列各题,带★要验算. 0.24×0.15= 9.32×1.4= ★40.75﹣29.5= ★41.6÷2.6=
用竖式计算.(带△的要验算)①△74.8÷0.22=△3.45×1.4=②1.296÷0.18=3.12×0.9≈(得数保留一位小数)6.9÷0.54≈(得数保留两位小数)
直接写出得数:69.21×10= 7.75+5.77= 4.9﹣0.49= 58.62÷100=178﹣101= 1÷8= 0.5×60= 1÷0.1+1×0.1=