1.9.5-7.3= 2.1-0.95= 3.3.4-2.8= 4.0.96-0.35= 5.9.53-1.53= 6.0.25+0.75= 7.1.2-0.8= 8.0.83-0.5= 9.2.7+0= 10.12.5×8= 11.2.3×4= 12.3.25×0= 13.0.4×50= 14.30×0.1= 15.2.6×3= 16.4.1×2= 17.0.35×0.2= 18.7.5×0.1= 19.2.5×2= 20.0.5×10= 21.0.6×8= 22.2.8×10=