what is the value of 1+1000(1000)-1000
are these binary numbers ?
If so, then ...
1+1000(1000)-1000
= 1+ (1000)(1000 -1)
= 1 + 1000(111)
= 1 + 111000
= 111001 , all in base 2
or
1+1000(1000)-1000 , in base 2
= 1 + 8(8) - 8 , in base 10
= 57
= 32 + 16 + 8 + 1
= 2^5 + 2^4 + 2^3 + 0 + 0 + 1
= 111001