giúp tôi giải nó được kojkQWanbgoquy FVHY XFJ,HYfábvhdfghas

Đáp án:

 a) 65.36+65.114+35.150

=65.(36+114)+35.150

=65.150+35.150

=(65+35).150

=100.150

=15 000

b) 31.75+69.210+31.135

=31.75+31.135+69.210

=31.(75+135)+69.210

=31.210+69.210

=(31+69).210

= 100.210

= 21 000

c) 21.75+79.63+21.15+79.27

= 21.75+21.15+79.27+79.63

= 21.(75+15)+79.(27+63)

=21.(75+15)+79.(27+63)

=21.90+79.90

=(21+79).90

= 100.90

=9000

d) 43.51+57.18+43.29+57.62

= 43.51+43.29+57.18+57.62

=43.(51+29)+57.(18+62)

=43.80+57.80

=(43+57).80

=100.80

=8000