把11.22.33.44.55.66.77.88这八个数相减.等于11.22.33.44.每个数这用一次.

问题描述:

把11.22.33.44.55.66.77.88这八个数相减.等于11.22.33.44.每个数这用一次.

88-44=44.55-22=33.33-11=22.77-66=11.易,

44-22=22 55-11=44 66-33=33 88-77=11

88-44=44 66-33=33 77-55=22 22-11=11

小学二年级的题吧
22-11=44-33=66-55=88-77