①×18×56×
②÷(÷+)
③÷+×1.05
④×(-)÷
⑤48×(-+ )
⑥101×-
(5) ()
1÷25%=
0.22=
-0.2=
×2 ÷ ×2=
1.4-1.08=
0×(-)=
+÷+=
99×0.8+0.8=
①
②
③
④
⑤8.6-0.6÷
⑥
①×15×
②÷×
③+×
④(++)×12
⑤÷[(-)×]
⑤
⑦
⑧