1/ My house has a yard.

⇒ There is a yard in my house.

2/ There is a gym in my school.

⇒ My school has a gym.

3/ There are 6 children in the kitchen.

⇒ The kitchen has 6 children.

4/ The apartment has a balcony.

⇒ There is a balcony in the apartment.

5/ There are 6 pens in the box.

⇒ The box has 6 pens.

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Ta có:

 \(\dfrac{-91}{104}\) rút gọn cho 13 được \(\dfrac{-7}{8}\)

→ \(\dfrac{-5}{6}=\dfrac{-5.4}{6.4}=\dfrac{-20}{24}\)

\(\dfrac{-7}{8}=\dfrac{-7.3}{8.3}=\dfrac{-21}{24}\)

Vì 20 < 21

nên \(\dfrac{-20}{24}>\dfrac{-21}{24}\) 

hay \(\dfrac{-5}{6}>\dfrac{-91}{104}\)

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Ta có:

\(\dfrac{-13}{40}=\dfrac{-13.2}{40.2}=\dfrac{-26}{80}\)

\(\dfrac{-3}{16}=\dfrac{-3.5}{16.5}=\dfrac{-15}{80}\)

Vì 26 > 15

nên \(\dfrac{-26}{80}< \dfrac{-15}{80}\)

Hay \(\dfrac{-13}{40}< \dfrac{-3}{16}\)

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\(x-\left(36:18\right)=12\)

\(=>x-2=12\)

\(=>x=12+2\)

\(=>x=14\)

\(\left(\dfrac{5}{2}+\dfrac{1}{3}\right):\left(1-\dfrac{2}{3}\right)\)

\(=\left(\dfrac{15}{6}+\dfrac{2}{6}\right):\left(\dfrac{3}{3}-\dfrac{2}{3}\right)\)

\(=\dfrac{17}{6}:\dfrac{1}{3}\)

\(=\dfrac{17}{6}\times3\)

\(=\dfrac{17}{2}\)

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\(8x-2^2=12\)

\(8x-4=12\)

\(8x=12+4\)

\(8x=16\)

\(x=16:8\)

\(x=2\)

1. A. Hers

2. A. Our

3. B. mine

4. D. his

5. C. Hers

\(598-418+958\)

\(=180+958\)

\(=1138\)

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\(2.2.8.16\)

\(=4.8.16\)

\(=32.16\)

\(=512\)

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