Tính nhanh:
\(\text{24.(16-30)-16.(24-30)}\)
\(=24.16-30.24-16.24+16.30\)
\(=\left(24.16-16.24\right)-30.\left(24-16\right)\)
\(=30.8\)
\(=240\)
~Ko chắc nha!
#HuyenAnh
Ta có : 24. ( 16 - 30 ) - 16 ( 24 - 30 )
= 24 . 16 - 24 . 30 - 16 . 24 - 16 . 30
= 24 . 30 - 16 . 30
= ( 24 - 16 ) . 30
= 8 . 30
= 240
Hok tốt
# owe
\(24\times\left(16-30\right)-16\times\left(24-30\right)\)
\(=24,16-30,24-16,24+16,30\)
\(=\left(24,16-16,24\right)-30\times\left(24-16\right)\)
\(=30\times8\)
\(=240\)
