\(\dfrac{9}{9}+\dfrac{5}{5}=1+1=2\)

Chúc bạn học tốt

\(\left(x-\dfrac{2}{3}\right):1\dfrac{1}{3}+\dfrac{1}{2}=\dfrac{3}{2}\)

\(\left(x-\dfrac{2}{3}\right):\dfrac{4}{3}+\dfrac{1}{2}=\dfrac{3}{2}\)

\(\left(x-\dfrac{2}{3}\right):\dfrac{4}{3}=\dfrac{3}{2}-\dfrac{1}{2}\)

\(\left(x-\dfrac{2}{3}\right):\dfrac{4}{3}=1\)

\(x-\dfrac{2}{3}=1\times\dfrac{4}{3}\)

\(x-\dfrac{2}{3}=\dfrac{4}{3}\)

\(x=\dfrac{4}{3}+\dfrac{2}{3}\)

\(x=2\)

Chúc bạn học tốt

Tính:

\(2448:\left[119-\left(23-6\right)\right]\)

\(=2448:\left[119-17\right]\)

\(=2448:102\)

\(=24\)

___________________________

\(\left\{789+\left[324:\left(78-66\right)\right]\right\}+273\)

\(=\left\{789+\left[324:12\right]\right\}+273\)

\(=\left\{789+27\right\}+273\)

\(=816+273\)

\(=1089\)

Chúc bạn học tốt

\(A=\left\{0;1;2;3;4;5;6;7;8;9;10;11;12\right\}\)

\(C=\varnothing\) ( C thuộc tập hợp rỗng ) 

\(C=\left\{x\in N|17< x< 18\right\}\)

"It's hot in here"

A. How about turning the fan?

B. Don't turn on the fan.

C. I'll show you.

D. The room is nice.

Next question : Câu hỏi tiếp theo

How hot is the sun?

⇒ Mặt Trời nóng như thế nào?

17 - 8 = 9

Xem lại câu a nha bạn.