Question

tính nhanh

41,65+8,25+8,35+9,45×21,75+10,55

 

Answer 1

bằng 2700

Answer 2

(41,65+8,35+8,25+21,75)x(10,55+9,45)

=(50+50)x20

=100x20

=2000

Answer 3

Tính nhanh:

41,65 + 8,25 + 8,35 + 9,45 . 21,75 + 10,55

= (41,65 + 8,35 ) + ( 21,75 + 8,25 ) . ( 10,55 + 9,45 )

= 50 + 30 . 20 

=50 + 60

= 110

Answer 4

41,65 + 8,35 + 8,25 + 9,45 x 21,75 + 10,55

= (41,65 + 8,35 + 8,25 + 21,75 ) x ( 9,45 + 10,55 )

= ( 50 + 30 ) x 20

= 80 x 20 

= 1600