2.5×40=
+ =
3.4× =
0.2÷ =
5- =
×60=
÷ =
×25%=
5.6+4.4= 70÷0.01= 6.5×= 2-45%=
17×= = 75%÷= =
①367+33=
②9﹣5.2=
③0.6×0.2=
④﹣=
⑤÷=
307﹣299= += ×0.63= A﹣A=
5.2﹣0.6= ÷= ×= 4.25×4=