1+0.25= 0.5×2.69×0.2=7.3+0.6+0.03= 5.36+4.4=7.5+2.5÷4= 2.78﹣5.46+5.22=
用竖式计算. 0.75×6.04=除法验算: 2.346÷2.3=验算: 1.47÷0.082=保留两位 82.3÷27=用循环小数表示.
口算: 7.5×0.4= 2.8÷14= 1÷4=2.3÷23= 2.4×25= 0÷0.387= 4.7×0.1= 8.74﹣8.74÷8.74=
用竖式计算. (1)0.72×3.23= (2)8.4÷0.56= (3)9.6×0.015= (4)0.864÷0.135= (5)25.43÷1.5≈ (得数保留一位小数) (6)2.4×4.316≈ (得数保留一位小数)
用竖式计算: 41.25×24= 63.7×1.2= 0.135÷0.12= 382.7÷89=
口算. 1.5×0.5=0.78÷0.01= 45×0.2= 360×0.5= 3.5÷0.7= 3.6÷18= 8×12.5= 32÷0.8=