①87+5.6﹣0.87+4.4
②3.68﹣0.82﹣0.18
③5× +5.5×80%+0.8
④ ×36
⑤ ×3÷ ×3
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﹣)+]