20 × 55 + 0,21 × 55 + 20,21 × 45
= 55 x (20 + 0,21) + 20,21 x 45
= 20,21 x 55 + 20,21 x 45
= 20,21 x (55 +45)
= 20,21 x 100
= 2021
`20 × 55 + 0,21 × 55 + 20,21 × 45`
`= 20 xx 55 + 0,21 xx 55 + 20 xx 45 + 0,21 xx45`
`= 20xx(55 +45 ) + 0,21 xx(55+45)`
`=20xx100 + 0,21 xx 100 `
`= 2000 + 21`
`=2021`
=55 x (20 + 0,21) + 20,21 x 45
=20,21 x 55 + 20,21 x 45
=20,21 x (55 +45)
=20,21 x 100
=2021.
20 × 55 + 0,21 × 55 + 20,21 × 45
` = 55 xx ( 20 + 0,21) + 20,21 xx 45`
` = 55 xx 20,21 + 20,21 xx 45`
` = 20,21 xx ( 55 + 45)`
` = 20,21 xx 100`
` = 2021`
=55.(20+0,21+20,21)-(10.20,21)
=55.40,42-202,1
=2223,1-202,1
=2021