问题
解答题
459-99-98.
答案
459-99-98,
=400+59-(100-1)-(100-2),
=400+59-100+1-100+2,
=(400-100-100)+(59+1+2),
=200+62,
=262.
459-99-98.
459-99-98,
=400+59-(100-1)-(100-2),
=400+59-100+1-100+2,
=(400-100-100)+(59+1+2),
=200+62,
=262.