Question

300+400+500+900=

Answer 1

300+400+500+900

= ( 400+500 ) + 300 + 900

= 900 + 300+ 900

= 900 x 2 + 300

= 1800 + 300

= 2100

bạn trao đổi không?

Answer 2

2100

mik thề 

Answer 3

300+400+500+900=2100

tk nha

ban cua minh

Answer 4

300+400+500+900

=700+500+900

=1200+900

=2100

Answer 5

300+400+500+900=2100

k mình nhé

Answer 6

300+400+500+900=2100