Question

tihs = cách thuận tiện nhất :

4.25+4.32+4.39+4.46+4.53

Answer 1

4.25+4.32+4.39+4.46+4.53

=4.(25+32+39+46+53)

=4.195

=780

Answer 2

= 4.(25 + 32 + 39 + 46 + 53)

= 4.195=780

Answer 3

=4.(25+32+39+46+53)

=4.195

=780

Answer 4

4.25+4.32+4.39+4.46+4.53=

=4.(25+32+39+46+53)=

=4.195=

=780

Answer 5

4 x 25 + 4 x 32 + 4 x 39 + 4 x 45 + 4 x 53 

= 4 x ( 25 + 32 + 39 + 45 + 53 )

= 4 x         195 

=  780 .