2.5×40=
+ =
3.4× =
0.2÷ =
5- =
×60=
÷ =
×25%=
24×50=
14.3﹣4.03=
4.2×(-)=
:( )=
0.35÷0.7=
0.5×=
9÷3%+30%=
1﹣1÷1+1=
0.7﹣ = × = + =
15÷ = ( + )×6= 1.25× ×8=