÷4=
÷25=
÷20=
÷26=
+
﹣
=
×
×
=
×
÷
= 4﹣7×
= (
﹣
)×
=
(﹣
)×(
+
)= 24÷
= 39÷
=
35÷=
÷
=
÷
=
÷
=
÷4= 63÷
=
÷
=
÷3=
÷6=
÷
= 15÷
÷
4÷
﹣0.8
×
÷
×0.6÷
(0.75+
)×(
﹣
)