-(-)=
1.25×3.2×0.25=
0.06×1.7=
1.6÷=
×6÷×6=
1÷1%=
6--=
5×÷5×
= 0.3÷0.7= 32÷1%=
1-1%= 0.33= 756- 198=
8.4-5.6= 1.25×0.08= ÷8=
4÷0.2= 50×4%= 7× ÷7× =