Bài 3: Tính nhanh ( phân số )
\(16x48+16x24+16x28\)
325 - 317 +426 - 418 = ...................................................................
...................................................................
..................................................................
16 x 48 + 16 x 24 + 16 x 28
= 16 x ( 48 + 24 + 28)
= 16 x 100
= 1600
325 - 317 + 426 - 418
= ( 325 + 426 ) - ( 317 + 418 )
= 751 - 735
= 16