①4.2×10.1
②0.94÷0.25÷4
③5.5×3.2×1.25
④2.8×4.5+5.5×2.8
⑤(15.4+0.6)÷0.04
⑥19.2÷2.4×3.2
86×94÷47=
(294+5577)÷57=
40000-125×38=
6396÷(451-369)=
1.6×50= 6.3÷0.1= 1﹣= -×=