用竖式计算并验算:3.906+0.66 28.56﹣14.76.
+= 6.2÷0.5= = 1﹣= = 44== 8﹣2= = 4÷0.25= = +4×=
1+= 2﹣= ﹣= 1.2×0.01=﹣﹣= ÷= 6×= ×=÷6= 3÷4+=
直接写出得数.1﹣9= +0.2= +﹣0.2= 5÷=3.6×= ×1.5= ﹣= 1÷=×15= 4.5+= 2.43+4.57= ﹣=×1.2= 2.5﹣= 5﹣1﹣1.6= ÷=2×0= (0.18×)÷9= 0.2 5×4= ÷=(+)×12=
直接写得数.+= ×18= ﹣= ××8=×= ÷6= ÷= (+)×24=÷= 24×25% 0÷ ×÷×=
直接写出得数0.12= = = == = ×÷= ×÷×=