(59+21)×(96÷8)8000÷125÷851.27﹣8.66﹣1.3437×8÷37×8.
口算: 2 1×0.7= 16×3.2= 0.98×14= 23÷1000= 3.6÷0.36= 0.85+0.2+0.7= 2÷0.25= 12.5﹣7.5+2.5= 1﹣0.3×0.2=
直接写出得数. 3.5×0.2= 10÷0.5= 6×0.25= 0.63÷0.9= 1.8×0.4= 0.99÷0.01= 1.2×4= 3.9×0.01= 2.33×1.2= 1.25×0.8=
2.3×1.91= 0.57×0.12= 3.08×0.25= 8.32÷4= 8.94÷0.12= 14.52÷2.4=
2.95×5.4 1.43×0.67(得数保留两位小数) 6.84÷0.36 7.9÷0.35(得数保留两位小数)
列竖式计算. 7.86×2= 4.65÷1.3= 4.32÷3.6= 0.38×4.2=