①2.64×36-3.6×16.4
②1.17÷(1.17÷3.9)
③1.25×6.4×0.25
④120÷2.4+120÷1.6
①
②
③
④
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﹣)+]
①6.4×2.5×1.25
②8.5×98%
③÷4+×
④×
①273﹣73﹣27
②1.25×9.78×80
③()×24
④[1﹣()]÷