Question

B=-23.(53+18)+53.(18+23)

Answer 1

`B=-23.(53+18)+53.(18+23)`

`=-23.53-23.18+53.18+53.23`

`=(53.23-23.53)+(53.18-23.18)`

`=18.(53-23)`

`=18.30`

`=540`.

Answer 2

B=-23(53+18)+53(18+23)

=-23*53+(-23)*18+53*18+53*23

=53(23-23)+18(53-23)

=0+18*30

B=540

Answer 3

$B=-23.(53+18)+53.(18+23)$

$=-23.53-23.18+53.18+53.23$

$=(53.23-23.53)+(53.18-23.18)$

$=18.(53-23)$

$=18.30$

$\mathrm{=(18.3).10}$

.

Answer 4

B=-23(53+18)+53(18+23)

B=-23*53+(-23)*18+53*18+53*23

B=53(23-23)+18(53-23)

B=0+18*30

B=540