Question

tính nhanh

197,20 - 69,10 - 97,20 =

Answer 1

197,20 - 69,10 - 97,20

= ( 197,20 - 97,20 ) - 69,10

= 100 - 69,10

= 30,9 

Answer 2

197,20 - 69,10 - 97,20 =

(197,20 - 97,20) - 69,10 =

100 - 69,10 =

30,9

Answer 3

197,20-69,10-97,20

=197,20-97,20-69,10

=100-69,10

=30,9

Answer 4

197,20 - 69,10 - 97,20

= ( 197,20 - 97,20 ) - 69,10

= 100 - 69,10

= 30,9

Answer 5

197,20 - 69,10 - 97,20

=197,20 - 97,20 - 69,10

= 100 - 69,10

=30,9

tk cho mình nhé 

Answer 6

\(197,20-69,10-97,20\)

\(=\left(197,20-97,20\right)-69,10\)

\(=100-69,10\)

\(=30,9\)

k mk nha

thank you very much

Answer 7

197,20 - 69,10 - 97,20

=[197,20 - 97,20]-69,10

=100 - 69,10=30,9

bạn bỏ ngoạc cũng được.