1-0.92= - = ×3.2= ÷ ×5=
3.5+4.28= × = ÷ = 99×0.9+0.9=
(个)
(颗)
4.6×0.32= 91.2÷7.6= 78.6÷11=(商用循环小数表示)
3.6×3.6 1.76÷0.171.76
-3.9-2.8 0.6×÷