\(23.157+46.15-23.87\)
\(=23.157+23.30-23.87\)
\(=23\left(157+30-87\right)\)
\(=23.100\)
\(=2300\)
Hok tot
23 x 157 + 46 x 15 - 23 x 87
= 23 x 157 + 23 x 30 - 23 x 87
= 23 x ( 157 + 30 - 87 )
= 23 x 100
= 2300
= 23. 157 + 23.2 .15 - 23.87
= 23. 157 + 23. 30 - 23. 87
= 23. ( 157 + 30 - 87)
=23. 100
= 2300
23 . 157 + 46 . 15 - 23 . 87
= 23 x 157 + 46 x 15 - 23 x 87
= 23 x 157 + 23 x 30 - 23 x 87
= 23 x ( 157 + 30 - 87 )
= 23 x 100
= 2300
hok tốt
23.157+46.15-23.8
=23.87+23.70+15.46-23.87
=23.87-23.87+23.70+15.46
=0+23.70+(15.23.2)
=23.70+23.30
=23(70+30)
=23.100=2300
23.157+46.15-23.87
=23.157+23.2.15-23.87
=23.157+23.30-23.87
=23.(157+30-87)
=23.100
=2 300
=23*157+23*30-23*87
=23(157+30-87)
=23*100
=2300
\(23.157+46.15-23.87\)
\(=23.157+23.2.15-23.87\)
\(=23.157+23.30-23.87\)
\(=23.\left(157+30-87\right)\)
\(=23.100\)
\(=2300\)
_Chúc bạn học tốt_
