计算下面各题,能简算的要简算
0.87×4.5-4.5×0.67 | 3.18-(0.33+1.18) |
1.2+1.47÷0.7 | 1.76-[(0.74+0.26)÷0.8]. |
解方程.
25-X=8.5 | X÷0.15=0.15 | 0.24X=31.2. |
直接写出得数.
18×= | ÷= | 0.25×3.2×4= | 32×(1-0.99)= |
25%×4= | 0÷= | ÷= | ×÷×= |
0.87×4.5-4.5×0.67 | 3.18-(0.33+1.18) |
1.2+1.47÷0.7 | 1.76-[(0.74+0.26)÷0.8]. |
25-X=8.5 | X÷0.15=0.15 | 0.24X=31.2. |
18×= | ÷= | 0.25×3.2×4= | 32×(1-0.99)= |
25%×4= | 0÷= | ÷= | ×÷×= |