直接写出得数(1)= (2)4.22+0.4+0.38= (3)6.55﹣1.5= (4)×= (5)0.72÷0.8=(6)1+= (7)12.5×6×8= (8)33= (9)75×25%+25×25%= (10)5×()×8=
直接写得数. 1.25×0.8= 0.52= 0.8÷0.04= 2.5×0.9×4= 8.4+26= 7.25×100= 23.5﹣16.3= 0.7÷1.4×0=
直接写出得数: 2×0.5= 4÷0.2= 0.45×2= 1.25×8= 0.4+0.16= 1.3÷1.3= 1.45+5.5= 1﹣0.68= 0.63÷0.9= 0.2×0.4= 0.84÷0.2= 0.61+0.06=
用竖式计算.(最后一题要写出验算过程) (1)354×3= (2)306÷6= (3)817÷5=验算.
2.7×0.6= 0.46×3.5= 10.5÷0.75= 10.8÷4.5=
35.2×0.65= 230÷0.46= 20÷32= 2.75×0.13=