Question

300 + 400 + 700

Answer 1

300 + 400 + 700

= 700 + 700

= 1400

Answer 2

300 + 400 + 700

= (300 + 700) + 400

= 1000 + 400

= 1400

Answer 3

300 + 400 + 700

= ( 300 + 700 ) + 400 

= 1000 + 400

= 1400

Answer 4

=1400 nhé bạn

nhớ k mình nhé

Answer 5

\(300+400+700\)

\(=300+700+400\)

\(=\left(300+700\right)\)\(+400\)

\(=1000+400\)

\(=1400\)

Answer 6

300 + 400 + 700

= 700 + 700

= 1400

Answer 7

300 + 400 + 700

= 700 + 700

= 1400

Answer 8

300+400+700=1400

Answer 9

300 + 400 + 700

= 700 + 700

= 1400