1)1/3+1/3+1/3+1/3+1/3+1/3+1/3+1/3+1/3+1/3=
=3 целых 1/3
2)1/2-1/2-1/2-1/2-1/2-1/2-1/2-1/2=-4
3)1/100+1/100+1/100+1/100+1/100+1/100+
+1/100+1/100+1/100+1/100+1/100+1/100+
+1/100+1/100+1/100=3/20=0.15
4)3целых1/3-4×3/20=-2/3×3/20=-2/20=
=-1/10=-0.1
Ответ:-0.1