Tính nhanh a, ( 2400 + 72 ) : 24 b, ( 3600 - 180 ) : 36 c, ( 525 - 315 ) : 15 d, ( 1026 - 741 ) : 57 e, 100: 24 - 52 : 24 f, 18 : 9 + 32 : 9 + 40 : 9 g) 23 : 8 + 35 : 8 - 10 : 8 h) 94 : 11 - 15 : 11 + 20 : 11 i) 37.138 - 38.37 k) ( 77.45.24 ) : ( 8.9.11 ) l) ( 25 + 3.75 - 250 ) : ( 2014.2015.2016 + 2017.2018.2019 ) m) ( 25.36363 - 2525.36 ) : ( 2011.2012.2013...2020 )

a/ `(2400+72):24`

`=2400:24+72:24`

`=100+3`

`=103`

b/ `(3600-180):36`

`=3600:36-180:36`

`=100-5`

`=95`

c/ `(525-315):15`

`=525:15-315:15`

`=35-21`

`=14`

d/ `(1026-741):57`

`=18-13`

`=5`

e/ `100:24-52:24`

`=(100-52):24`

`=48:24`

`=2`

f/ `18:9+32:9+40:9`

`=(18+32+40):9`

`=90:9`

`=10`

g/ `23:8+35:8-10:8`

`=(23+35-10):8`

`=48:8`

`=6`

h/ `94:11-15:11+20:11`

`=(94-15+20):11`

`=99:11`

`=9`

i/ `37.138-38.37`

`=37.(138-38)`

`=37.100`

`=3700`

k/ `(77.45.24):(8.9.11)`

`=(77:11).(45:9).(24:8)`

`=7.5.3`

`=105`

l/ `(25+3.75-250):(2014.2015.2016+2017.2018.2019)`

`=(25+225-250):(2014.2015.2016+2017.2018.2019)`

`=(250-250):(2014.2015.2016+2017.2018.2019)`

`=0:(2014.2015.2016+2017.2018.2019)`

`=0`

m/ `(25.3636-2525.36):(2011.2012.2013...2020)`

`=(25.101.36-101.25.36):(2011.2012.2013...2020)`

`=0:(2011.2012.2013...2020)`

`=0`

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