Question

Tính nhanh:

109,80 - 98,57 - 7,80

Answer 1

\(109,80-98,57-7,80\)

\(=\left(109,80-7,80\right)-98,57\)

\(=102-98,57\)

\(=3,43\)

Answer 2

109,80 - 98,57 - 7,80

= (109,80 - 7,80) - 98,57

= 102 - 98,57

= 3,43

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Answer 3

109,80 - 98,57 - 7,80

= 109,80 - 7,80 - 98,57

= 102 - 98,75

= 3,43