①4.3×24.3+4.3 0.6×30.6×2 0.4+30.4×3
②1.2+1.21.2×3 6×0.10.1×6 7.5+157.5×4
0.8×2= 2.5×2= 3×0.3= 7×0.1=
0.6×5= 1.3×2= 0.1×20= 0.1×10=