解方程.
(1)6x-1.24=7.4 | (2) | (3). |
竖式计算.
(1)1.65×3.6= | (2)27.01÷7.3= |
脱式计算,能简算的要简算.
50.4×1.9-1.8 | 3.76×0.25+25.8 | 4.8×0.25 |
1.5×105 | 1.2×2.5+0.8×2.5 | 21.36÷0.8-12.9. |
(1)6x-1.24=7.4 | (2) | (3). |
(1)1.65×3.6= | (2)27.01÷7.3= |
50.4×1.9-1.8 | 3.76×0.25+25.8 | 4.8×0.25 |
1.5×105 | 1.2×2.5+0.8×2.5 | 21.36÷0.8-12.9. |