$\text{Chào bạn. Bạn tham khảo nhé !}$
$\text{Đáp án :}$
$\text{( 2700 - 81 ) ÷ 9}$
$\text{= 2700 ÷ 9 - 81 ÷ 9}$
$\text{= 300 - 9}$
$\text{= 291}$
$\text{( 400 - 16 ) × 5}$
$\text{= 400 × 5 - 16 × 5}$
$\text{= 2000 - 80}$
$\text{= 1920}$
$\text{( 2100 + 42 ) ÷ 21}$
$\text{= 2100 ÷ 21 + 42 ÷ 21}$
$\text{= 100 + 2}$
$\text{= 102}$
$\text{#I_love_you}$
$\text{#No_copy}$
$\text{Chúc bạn hok tốt nhé !}$
$\text{Cho mik xin vote 5 sao + 1 cảm ơn + câu trl hay nhất nhé}$
