Question

大神们！帮帮忙！先到先得哦！准确定采纳哦

Answer 1

6.9X43+69X5.7
=6.9 X (1X43+10X5.7)
=6.9X(43+57)
=6.9X100
=690

Answer 2

6.9X43+69X5.7
=69X4.3+69X5.7
=69X(4.3+5.7)
=69X10
=690

追答

有疑问么？

不谢

Answer 3

你好，先踩后回一定回答哦'如果你还没有填写邀请码就贴些我的吧699444祝你好运！包你得到三财富值

Answer 4

先采na,我在帮你解答，谢谢。

追问

那算了吧

Answer 5

=6.9x(43十57)=690

Answer 6

6.9*(43+57)=690