6÷80%= 1.74+7.5= 0.53= 3-3÷4= ×0.4÷×0.4=
2分米:4毫米= 4+ = 3.35+6.65×0= ( ):0.25=1 61×29≈
75×12﹣848÷4 [-(-)]÷ 9.24÷[1.5×(0.9﹣0.7)]
1-0.74= = 0.01÷0.4= 8÷1.5÷2=
0.23= 7÷7%= = =
3.8+0.62= 0.15×0.8= 0.1:0.01= 0.5吨:50千克=
10×10%= ÷12= 1.6+0.4×10= =