作业帮9又7/8x8+8又6/7x7+7又5/6x6+6又4/5x5
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/27 06:32:46
9又7/8x8+8又6/7x7+7又5/6x6+6又4/5x5
9又7/8x8+8又6/7x7+7又5/6x6+6又4/5x5
9又7/8x8+8又6/7x7+7又5/6x6+6又4/5x5
9又7/8x8+8又6/7x7+7又5/6x6+6又4/5x5
=(9+7/8)x8+(8+6/7)x7+(7+5/6)x6+(6+4/5)x5
=72+7+56+6+42+5+30+4
=200+22
=222