Question

98,54 x 7 + 98,54 x 2 + 98,54 = 9854 

kết quả đúng hay sai

Answer 1

\(98,54\times7+98,54\times2+98,54=98,54\times\left(7+2+1\right)=98,54\times10=985,4\ne9854\)
=> Kết quả sai

Answer 2

Sai 

= 98,54 × ( 1 + 2 + 7 ) = 98,54 × 10 = 985,4

Answer 3

\(98,54\times7+98,54\times2+98,54\\ =98,54\times\left(7+2+1\right)\\ =98,54\times10\\ =985,4\)

\(\Rightarrow98,54\times7+98,54\times2+98,54=9854làsai\)