208 dung 100 luon

$1-\frac{1}{3}=\frac{2}{3}$1−13 =23  (tổng số bài)
Ngày hai bạn Hoa làm được:
$\frac{2}{3}\cdot\frac{3}{7}=\frac{2}{7}$23 ·37 =27  (tổng số bài)
 8 bài tương ứng với số phần là:
$1-\left(\frac{2}{7}+\frac{1}{3}\right)=\frac{8}{21}$1−(27 +13 )=821  (bài)

Cả 3 ngày bạn Hoa làm được :

$8:\frac{8}{21}=21$8:821 =21(bài)

Ngày thứ nhất bạn Hoa làm được:

$21.\frac{1}{3}=7$21.13 =7(bài)

Ngày thứ hai bạn Hoa làm được:

$\left(21-7\right).\frac{3}{7}=6$(21−7).37 =6 (bài)

ĐS: ngày thứ nhất : 7 bài

Ngày thứ 2 : 6 bài

(x+1) + (x+2) + (x+3) + ... + (x+30) = 756

1.Write a passage to decsribe your room.

- what is the favourite room in your house ? ( living room , badroom , dining room , kitchen )

- describe it

- why is it your favourite room ?

how long does it take you (go) to school ?

.............................................

how long a day does she spent (do) her homework

...............................................

does he spent 30 minutes (listen) to music everyday?

...............................................

she will spent 2 day (visit) hue next week

................................................

. He gets to work in half an hour every morning.

It spend.................................................................

It took me two hours ( get ) to vinh city by car

........................................

I spent two hours ( get ) to vinh city by car

.......................................

It take me about two house each day ( do ) my homework

..............................

I spent about two hours each day ( do ) my homework

......................

I spend a day ( paint ) this house

...........................

It takes me a day ( paint ) this house

......................

It take him half an house ( get ) to work

.....................

He spends half an hours ( get ) to work

It took mr.hoang half an hours( walk ) to yesterday

..........................

It took me two hours to get to vinh city by car

I spend..................

Do you enjoy listening to music

Are you interrested...........

I often walk from my house to the zoo in fifteen minutes

It often.............

It take me about two hours each day to do my homework

Are you interrested..........

We took a train to liverpool last sunday

We went............

We learned this after a long time

It took..............

We wrote this latter for two hours

It took...........

We spent...........

I spent a day painting this house

It takes...........

I paint............

It take him haft an hour to get to work

He................

My father got to ha noi by taxi in 6 hours last month

My father spent...............

It took mr.hoang half an house every morning

It takes............

I spent.............

I had to spend the whole evening finishing my work

It took.........

I.Rewrite

1.where do you live ?

what..........................

2.where are you from ?

what.............................

how old are you ?

.........................................

how tall are you ?

what.................................

how heavy are you ?

what..............................

25.5 mủ x+5 = 5mủ 8

124+225:(x-3) mủ 2=57