Question

Tính theo quy tắc dấu ngoặc 

(1047-1564)-(1047-564)

Answer 1

\(\left(1047-1564\right)-\left(1047-564\right)\)

\(=1047-1564-1047+564\)

\(=\left(1047-1047\right)-\left(1564-564\right)\)

\(=-1000\)

Answer 2

  (1047-1564)-(1047-564)

=1047 - 1564 - 1047 + 564

=(1047-1047)-(1564 - 564)

=-1000