问题
填空题
102+104+108+116+132-101-103-109-127=______.
答案
解法一:102+104+108+116+132-101-103-109-127,
=[100×5+2×(1+2+4+8+16)]-[100×4+3×(1+3+9)+1],
=[500+62]-[400+40],
=(500-400)+(62-40),
=122.
解法二:102+104+108+116+132-101-103-109-127
=101+1+103+1+109-1+127+5+116-101-103-109-127,
=1+1-1+5+116,
=122.
故答案为:122