0.125×64×0.25 ×101-0.75 ×33+87.5%+0.875
÷( + × ) 10.15﹣6.25﹣3.75+8.85
( + )×12+ 65÷ -38× +
547+198=
0.6-0.28=
5.5×=
3.6÷0.36=
7.7÷=
=
×5÷×5=
⑴12:4=6:x
⑵x:5=2.5:0.1
⑶:x:
⑷