Numeral Systems(Binary number)

Question

Represent each of the following by a binary number.
a) 1×2^4+0×2^3+1×2^2+0×2^1+1
b) 2^3+2^1

Answer 1

a) 1×2^4+0×2^3+1×2^2+0×2^1+1
=10101
b) 2^3+2^1
=8+2
=100+10
=110

2007-07-04 19:28:07 補充：
第２條計錯b) 2^3 2^1=8 2＝１０００＋１０＝１０１０因為2^1＝１０2^2=1002^3=1000所以2^3 2^1=1010

Answer 2

a) 1×2^4+0×2^3+1×2^2+0×2^1+1
=10000+100+1
=10101(2)

b)2^3+2^1
=1000+10
=1010(2)