x÷8=2.9
0.9x+x=2.28
3(x-1.5)=12.9
0.03×0.6=
2.4×0.5=
4.3×0.2=
0.45÷0.9=
8÷0.04=
3.5+0.7=
36÷0.06=
0.25×4÷0.25×4=
5.3÷0.1= 0.4×2.5= 6.2×3+1.5= 1.4×3÷1.4×3=
0.52= 5a×2a= 4.8x+0.8x= 12.1x÷11=
①273﹣73﹣27
②1.25×9.78×80
③()×24
④[1﹣()]÷