\(8.5+8.5-8.5+8.5\)
\(=8.\left(5+5-5+5\right)\)
\(=8.10\)
\(=80\)
\(8,5+8,5-8,5+8,5\)
\(=\left(8,5+8,5\right)-\left(8,5-8,5\right)\)
\(=17+0\)
\(=17\)
8,5 + 8,5 - 8,5 + 8,5
= ( 8,5 + 8,5 ) + ( 8,5 - 8,5 )
= 17 + 0
= 17
Hok tốt
\(8.5+8.5-8.5+8.5\)
\(=8.\left(5+5-5+5\right)\)
\(=8.10\)
\(=80\)
P/s : Sao bạn nào giải cũng sai hết nhở???
\(8.5+8.5-8.5+8.5\)
\(=8.\left(5+5-5+5\right)\)
\(=8.10\)
\(=80\)
8.5+8.5-8.5+8.5= 8.(5+5-5+5)
=8.10
=80
hok tốt
mấy bn nhầm rồi