Question

cho e hoi 0,2x17x7 +0,14x520+31x1,4

Answer 1

0,2x17x7 +0,14x520+31x1,4

= 3,4 x 7 + 72,8 + 43,4

= 23,8 + 72,8 + 43,4

= 96,6 + 43,4

= 140.

Hok tốt ^_^ !

Answer 2

= 23.8 + 72.8 + 43.4

=140

Answer 3

\(0,2.17.7+0,14.520+31.1,4\)

\(=1,4.17+1,4.52+1,4.31\)

\(=1,4.\left(17+52+31\right)\)

\(=1,4.100\)

\(=140\)

Answer 4

cam on nhe

Answer 5

Trả lời:

\(0,2.17.7+0,14.520+31.1,4\)

\(=1,4.17+1,4.52+31.1,4\)

\(=1,4\left(17+52+31\right)\)

\(=1,4.100\)

\(=140\)

Hok tốt!

Good girl