①0.75× ÷4
② +6÷
③ - ÷
④2- ÷ ×
⑤ × - ÷
⑥ ÷( - × )
5.1 :1.7 37.5%:0.8
×3= ×13= 15×= 18×=
×= ×= ×= ×=
①1.25× ×8×
②3.7× +4.3÷
③33×
④ ×51-
⑤ ÷( + )
⑥( - )×27×37