①×4=
②0÷=
③
④-0.25=
⑤
⑥60÷0.2=
⑦12×=
⑧5÷7=
⑨
=
+ = ﹣ = + = 1﹣ ﹣ = + =
﹣ = 1﹣ = + ﹣ = + + + = + ﹣ =
0.6×0.8= 3.5-2.6= -= 2.4÷0.08= 1-0.6+0.4=
2.4×0.5= += 40÷160= 0.5×0.18= 5×0.6÷5×0.6=
2÷ =
2- =