a) 23*45 -23*35+23*90
= 23* (45-35+90)
= 23*100
= 2300
b) 636/ 6 - 36/ 6
= 600/ 6
= 100
c) 11*607 -607
= 11*607 -607*1
= 607* (11 -1)
= 607*10
= 6070
a) 23 x 45 - 23 x 35 + 23 x 90
=23 x (45 - 35 + 90)
= 23 x 100
= 2300
b) 636 / 6 - 36 / 6
= (636 - 36) /6
= 600/6
=100
c) 11 x 607 - 607
= 607 x ( 11 - 1)
= 607 x 10
=6070
a) 23*45 -23*35+23*90
= 23* (45-35+90)
= 23*100
= 2300
b) 636/ 6 - 36/ 6
= 600/ 6
= 100
c) 11*607 -607
= 11*607 -607*1
= 607* (11 -1)
= 607*10
a)23*45-23*35+23*90
=23*(45-35+90)
=23*(10+90)
=23*100
=2300
b)636:6-36:6
=(636-36):6
=600:6
=100
c)11*607-607
=(11-1)*607
=10*607
=6070
Chúc cậu học tốt :3
a, 23 x 45 - 23 x 35 + 23 x 90
= 23 x ( 45 - 35 + 90 )
= 23 x 100
= 2300