计算下列各题.(能简算的要简算). 91÷2.6÷0.05= | 6.3×3.7+6.3×6.3= | (3.7+1.7×0.4)÷2.5= |
7.28+3.2÷2.5= | 0.74+0.9×7.4= | 7.8÷0.125÷0.8= |
解方程.
x÷(1-32%)=11 | x+12%x=112. |
笔算并验算.
437+295=验算: | 903-275=验算: |
计算下列各题.(能简算的要简算). 91÷2.6÷0.05= | 6.3×3.7+6.3×6.3= | (3.7+1.7×0.4)÷2.5= |
7.28+3.2÷2.5= | 0.74+0.9×7.4= | 7.8÷0.125÷0.8= |
x÷(1-32%)=11 | x+12%x=112. |
437+295=验算: | 903-275=验算: |