0.59×2.3≈(积保留两位小数)
1.29×0.91.29 4.9×14.9 3.27×1.13.27
5.9×0.995.9 1×6.46.4 1.03×0.760.76
3.2×2=
2.4×5=
0.125×8=
0.8×0.5=
0.5×0.07=
7.2×3=
13.2×0.2=
7.9×0.1=
18.7×0×4=
3.5+1.5×2=
10.5×4.8=
7.49×1.2= 验算
0.17×0.71=(得数保留两位小数)
1.78×0.24=(精确到百分数)
0.78×98
12.5×3.9×0.8
4.6×3.7+6.3×4.6
X-1.5=12.9
9x+5x=8.4
(1.5+x)÷5=4.2
每户每月用水10吨以内(含10吨),1.7元/吨.超出10吨部分,按2.5元/吨收取.