\(a,=16-11+4.5=16-11+20=5+20=25\\ b,=25-4.4=25-16=9\\ c,=15\left(24+76\right)=15.100=1500\\ d,=27\left(37+64-1\right)=27.100=2700\)
a) `48:3-11+4(75:15)`
`= 16-11+4.5`
`= 5+20`
`= 25`
b) `25-200:50.4`
`= 25-4.4`
`= 25-16`
`= 9`
c) `15.24+15.76`
`= 15(24+76)`
`= 15.100`
`= 1500`
d) `27.37+27.64-27`
`= 27(37+64-1)`
`= 27.100`
`= 2700`
Bài `1`
`a)`
`48:3-11+4( 75:15 )`
`=16-11+4.5`
`= 16-11+20`
`=5 + 20`
`=25`
`b)`
`25-200:50.4`
`= 25-4.4`
`=25-16`
`= 9`
`c)`
`15.24+15.76`
`= 15.(24+76)`
`=15. 100`
`=1500`
`d)`
`27.37+27.64-27`
`=27.(37 + 64-1)`
`=27. 100`
`=2700`
a,=16−11+4.5=16−11+20=5+20=25
b,=25−4.4=25−16=9
c,=15(24+76)=15.100=1500
d,=27(37+64−1)=27.100=2700
a. 48:3-11+4( 75:15 )=25
b. 25-200:50.4=9
c. 15.24+15.76=1500
d. 27.37+27.64-27=2700
Bài 1:
a. 48:3-11+4.(75:15)
= 48:3-11+4.5
= 16-11+20
= 5+20
= 25
b. 25-200:50.4
= 25-4.4
= 25-16
= 9
c.15.24+15.76
= 15.(24+76)
= 15. 100
= 1500
d.27.37+27.64-27
= 27.(37+64-1)
= 27.100
= 2700