a)72:9+75x2-(31-19)
=8+150-12
=158-12
=146
b)16x2+5x16+16x3
=32+80+48
=112+48
=160
a)72:9+75x2-(31-19)
=8+150-12
=158-12
=146
b) 16x2+5x16+16x3
=32+80+48
=160
a) 72 : 9 + 75 x 2 - ( 31 - 19 )
= 8 + 150 - 12
= 158 - 12
= 146
b) 16 x 2 + 5 x 16 + 16 x 3
= 32 + 80 + 48
= ( 32 + 80 ) + 80
= 80 + 80
= 160
Tính giá trị biểu thức:
a ) 72 : 9 + 75 x 2 - ( 31 - 19 )
= 8 + 150 - 12
= 158 - 12
= 146
b ) 16 x 2 + 5 x 16 + 16 x 3
= 16 x ( 2 + 5 + 3 )
= 16 x 10
= 160
72:9+75x2-(31-19)=8+150-12
=158-12
=146
16x2+x16+16x3=32+80+48
=160