2x+5=17 3(x-2)=12
15.75÷2.1= 4.23÷1.2=
0.6×0.5=
0.125×8=
3.5×0.2=
0.9×0.8=
4.5×0.2=
1.5×0.4=
2x+5.4=18.9 2x-2.8=9.96 (x-0.8)×4=7.2
0.75×10.1 8.54×99+8.54 15.8+8.2×1.3