1: 10 0.57 1 4.8 1 8
2: 1.7+7.52+0.48 9.71--(5.48+3.71) =9.22+0.48 =9.71--8.19 =9.7 =1.52
1.7+(7.52+0.48) 9.71--5.48+3.71 =1.7+8 =7--5.48 =9.7 =1.52
3: 1.76+2.83+0.24 5.4+0.63+2.37+2.6 =2+2.83 =(5.4+2.6)+(0.63+2.37) =4.83 =8+3 =11
5.76--1.84--1.16 0.85+2.41+0.59 = 5.76--(1.84---+1.16) = 0.85+(2.41+0.59) =5.76--3 = 0.85+3 =2.76 = 3.85
9.6--(3.6+2.5 ) 3.62--1.87--1.62 =9.6--3.6--2.5 =3.62--1.62--1.87 =6--2.5 =2--1.87 =3.5 =0.13
4: 0.54--0.16+0.54 =0.92
5: 50--8.4--11.6 =50--(8.4+11.6) =50--20 =30 |