①2.8× ÷
②( + )×30
③7.42-5.87+2.58-4.13
④0.25×4.4
⑤25×32×125
⑥ ×[ -( -0.125)]
①37.8÷25÷4
②3.84+4.6+5.16
③2.4÷ ×
④
⑤63.5×25%+0.25×36.5
⑥