①11+2x=12
②0.7x+3.6x=43
③7:x=:
④
9﹣0.99= 24÷=
2022÷2021= -=
1.25×3.2=
17.5﹣2.5×4=
0.33=
9.04+0.6=
=
5÷0.01=