= 42. (13 - 5 + 22)
= 42. 30
= 1260
42 . 13 - 42 . 5 + 42 . 22
= 42 . ( 13 - 5 + 22 )
= 42 . 30
= 1260
Hok tốt
Câu trả lời : 42 . 13 - 42 . 5 + 42 . 22
= 42 . ( 13 - 5 +22 ) = 42 . ( 8 + 22 )
= 42 . 30
= 1260
42 . 13 - 42 . 5 + 42 . 22
= 42 . ( 13 - 5 + 22 )
= 42 . 30
= 1260
42.13-42.5+42.22
42.(13-5+22)
42.30
1260
42.13-42.5+42.22
=42.[13-5+22]
=42.30
=1260