Write 27 as the sum of powers of 2
24+23+21+3
24+23+21+2
24+23+21+1
25+23+21+1
27=16+8+2+1
27=24+23+21+1
Write 49 as the sum of powers of 2
Write 102 as the sum of the powers of 2
Write 16 as the sum of the powers of 2.