101 2 = 1∙2^2+0∙2^1+1∙2^0 = 4+0+1 = 5 10
100 2 = 1∙2^2+0∙2^1+0∙2^0 = 4+0+0 = 4 10
1001 2 = 1∙2^3+0∙2^2+0∙2^1+1∙2^0 = 8+0+0+1 = 9 10
10 2 = 2 10
111 2 = 1∙2^2+1∙2^1+1∙2^0 = 4+2+1 = 7 10
1110 2 = 1∙2^3+1∙2^2+1∙2^1+0∙2^0 = 8+4+2+0 = 14 10
1000 2 = 1∙2^3+0∙2^2+0∙2^1+0∙2^0 = 8+0+0+0 = 8 10
1010 2 = 1∙2^3+0∙2^2+1∙2^1+0∙2^0 = 8+0+2+0 = 10 10
1111 2 = 1∙2^3+1∙2^2+1∙2^1+1∙2^0 = 8+4+2+1 = 15 10
101 2 = 1∙2^2+0∙2^1+1∙2^0 = 4+0+1 = 5 10
100 2 = 1∙2^2+0∙2^1+0∙2^0 = 4+0+0 = 4 10
1001 2 = 1∙2^3+0∙2^2+0∙2^1+1∙2^0 = 8+0+0+1 = 9 10
10 2 = 2 10
111 2 = 1∙2^2+1∙2^1+1∙2^0 = 4+2+1 = 7 10
1110 2 = 1∙2^3+1∙2^2+1∙2^1+0∙2^0 = 8+4+2+0 = 14 10
1000 2 = 1∙2^3+0∙2^2+0∙2^1+0∙2^0 = 8+0+0+0 = 8 10
1010 2 = 1∙2^3+0∙2^2+1∙2^1+0∙2^0 = 8+0+2+0 = 10 10
1111 2 = 1∙2^3+1∙2^2+1∙2^1+1∙2^0 = 8+4+2+1 = 15 10