﹣2.7=    14×=   ÷5=
1=   =   =
=   ﹣=   =
=   =   =
=    24=   =
=   =   =
=   =   =
=   =   =
=   =   =
=   =   =
0.25×8=    3.4﹣﹣=   +0.5=
10.5﹣1.05=   =    10.01÷10%=
1.5×=   80%=     1×9=
3×=