75×0.8 75 1.1×6.7 6.7 1×0.99 0.99
0.125×3.2×0.25 28.4×99+28.4
13÷0.4÷2.5 20.9+10.5÷(5.2-3.7)
①x-2.7=13.3
②x+16=56
③2x+5x=14.7
④3(x-2.4)=33
⑤7x+18=32
⑥(2x-5)÷6=4