用简便方法计算下题: 8+88+888+8888+88888 = = =

2024-11-23 06:51:24
推荐回答(2个)
回答1:

8+88+888+8888+88888 = = =8×(1+11+111+1111+11111)=8×12345
=98760,额。。。是这样吗?????????

回答2:

80000+16000+2400+320+40=98760