1. 3.8+3-1.1=5.7
2. 0.5-1.2-0.36=-1.06
3. 2.8-0.6*(2/3)=2.8-0.4=2.4
4. 3.75+(1/5)*1.25=3.75+0.25=4
5. (21/25)*(5/7)-0.3=3/5-0.6=0.6-0.6=0
1. 3.8+3-1.1=5.7
2. 0.5-1.2-0.36=-1.06
3. 2.8-0.6*(2/3)=2.8-0.4=2.4
4. 3.75+(1/5)*1.25=3.75+0.25=4
5. (21/25)*(5/7)-0.3=3/5-0.6=0.6-0.6=0