15.6÷24=
1.6÷12≈(结果保留两位小数)
*6.75÷15=
0÷19.8= 0.2×0.05= 0.6×1.5= 1.36+2.87+3.64=
5.5×13.2+6.8×5.5
7.7÷(14.2-3.2)×3.5
3.99×25
2.5×0.125×3.2
>>>
0.6+4.5= ﹣ = 2÷ = 2.5:6=
125%×8= 18÷54= 0.5×2.4= : =