j)  \(\dfrac{-3}{4}\)  +    \(\dfrac{2}{7}\)  +  \(\dfrac{-1}{4}\)  +\(\dfrac{3}{5}\)  +\(\dfrac{5}{7}\)

k) \(\dfrac{-2}{17}\)+  \(\dfrac{15}{23}\) +   \(\dfrac{-15}{17}\)  + \(\dfrac{4}{19}\) +\(\dfrac{8}{23}\)

Bài 2: Thực hiện phép tính một cách hợp lí

f) \(\dfrac{7}{19}\)  . \(\dfrac{8}{11}\)   +  \(\dfrac{3}{11}\) .    \(\dfrac{7}{19}\) +\(\dfrac{-12}{19}\)

i) (  \(\dfrac{3}{8}\) +  \(\dfrac{-3}{4}\)+ \(\dfrac{7}{12}\) ) : \(\dfrac{5}{6}\)  +\(\dfrac{1}{2}\)

Bài 1: Thực hiện phép tính một cách hợp lí:

f) \(\dfrac{-5}{9}\) +  \(\dfrac{8}{15}\)   +  \(\dfrac{-2}{11}\)   +  \(\dfrac{4}{-9}\)  +\(\dfrac{7}{15}\)

*Complete the second sentence so that it means the same as the first one. Use the word in brackets. Do not change the word. Write NO MORE THAN FOUR WORDS

1. I think he can speak Janpanese very well.

-> I think he is______________very well.               (ABLE)

2. Minh likes teaching robots very much.

-> Minh__________________teaching robots.                       (INTERESTED)

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