a) 20 . 15 . 5 + 10 . 14 . 10 + 50 . 13 . 2 b) 16 . 125 – 16 . 25 19/07/2021 Bởi Adeline a) 20 . 15 . 5 + 10 . 14 . 10 + 50 . 13 . 2 b) 16 . 125 – 16 . 25
a) `20.15.5+10.14.10+50.13.2` `=(20.5).15 +(10.10).14 +(50.2).13` `=100.15+100.14+100.13` `=100.(15+14+13)` `=100.42` `=4200` b) `16.125-16.25` `=16.(125-25)` `=16.100` `=1600` Bình luận
a)20 . 15 . 5 + 10 . 14 . 10 + 50 . 13 . 2 =(20.5).15 +(10.10).14 +(50.2).13 =100.15+100.14+100.13 =100.(15+14+13) =100.42=4200 b) 16 . 125 – 16 . 25 =16.(125-25) =16.100=1600 Chúc học tốt! Bình luận
a) `20.15.5+10.14.10+50.13.2`
`=(20.5).15 +(10.10).14 +(50.2).13`
`=100.15+100.14+100.13`
`=100.(15+14+13)`
`=100.42`
`=4200`
b) `16.125-16.25`
`=16.(125-25)`
`=16.100`
`=1600`
a)20 . 15 . 5 + 10 . 14 . 10 + 50 . 13 . 2
=(20.5).15 +(10.10).14 +(50.2).13
=100.15+100.14+100.13
=100.(15+14+13)
=100.42=4200
b) 16 . 125 – 16 . 25
=16.(125-25)
=16.100=1600
Chúc học tốt!