11.22.33.44.55.66.77.88.
问题描述:
11.22.33.44.55.66.77.88.
把11,22,33,44,55,66,77,88,分别填入括号里,(每个数字只能用一次) ()-()=()-()=()-()=()-()
答
88-44=44 66-33=33 77-55=22 22-11=11 44-22=22 55-11=44 66-33=33 88-77=11 88-44=44.55-22=33.33-11=22.77-66=11.易