7.6÷0.97.6 0.8²0.8+0.8
4.7×0.290.47×2.9 4.35÷2.143.5÷21
①3.8+4.29+4.2
②5.5×17.3+6.7×5.5
③2.33×0.5×4
④2.73×99
①101×32
②2.74+8.67+7.26+11.33
③18.8﹣5.8﹣﹣4.2﹣
④×+÷
⑤0.888×125×73+999×3
⑥4﹣[3.75×(1.2﹣)+]