(15+x):3=315:312

(15+x):3=33

(15+x)=33.3

15+x=34

15+x=81

x=81-15

x=66

Vậy x= 66

1.A.activities B.weekend C.winter D.summer

2.A.fishing B.packet C.pagoda D.purple

3.A.uncle B.idea C.picnic D.sausage

4.A.listen B.usually C.video D.correct

5.A.apple B.tomato C.cooking D.bottle

Today is Sunday ....it..... (1) is fine and warm. Mr Minh's family are (2).......staying.........at home. They are working in the house now. Mr Minh is cleaning the doors and windows. Trung is helping (3)........him...........Mrs Nga and Thuy (4)........are.......in the kitchen. Mrs Nga is (5).........washing.............. the dishes. Thuy is cleaning the vegetables. They are going to (6).......have.......... a good lunch together. Mr Minh's family are not free today. They are busy(7).......with.............the housework,but they are very happy. They are going to finish the housework at half past eleven, then (8)........they...........will have lunch. In the afternoon, they are going to the park. In the (9).......evening..........Trung and Thuy are going to (10).......do............. all their exercises before going to bed.

Dear Linh/Lan/Peter/….. ,

Yesterday my family moved to a new mansion near the beach which has many rooms. My favourite one is  my bedroom.

It’s on the second floor, opposite to a bathroom so it’s quite convenient to go to the restroom whenever I want. It doesn’t have many furniture: a small desk at the corner of the room, a wardrobe where I put my clothes and some of my teddy bears and a warm bed. Although it looks plain at first, but then I decorated it with some hand – made flowers so it looks amazing now.

Please send me your letter as soon as posible.

Best regards,

Huong/Mary/Jasmine/…

Dear Linh/Lan/Peter/….. ,

Yesterday my family moved to a new mansion near the beach which has many rooms. My favourite one is  my bedroom.

It’s on the second floor, opposite to a bathroom so it’s quite convenient to go to the restroom whenever I want. It doesn’t have many furniture: a small desk at the corner of the room, a wardrobe where I put my clothes and some of my teddy bears and a warm bed. Although it looks plain at first, but then I decorated it with some hand – made flowers so it looks amazing now.

Please send me your letter as soon as posible.

Best regards,

Huong/Mary/Jasmine/…

Dear Linh/Lan/Peter/….. ,

Yesterday my family moved to a new mansion near the beach which has many rooms. My favourite one is  my bedroom.

It’s on the second floor, opposite to a bathroom so it’s quite convenient to go to the restroom whenever I want. It doesn’t have many furniture: a small desk at the corner of the room, a wardrobe where I put my clothes and some of my teddy bears and a warm bed. Although it looks plain at first, but then I decorated it with some hand – made flowers so it looks amazing now.

Please send me your letter as soon as posible.

Best regards,

Huong/Mary/Jasmine/…

Dear Linh/Lan/Peter/….. ,

Yesterday my family moved to a new mansion near the beach which has many rooms. My favourite one is  my bedroom.

It’s on the second floor, opposite to a bathroom so it’s quite convenient to go to the restroom whenever I want. It doesn’t have many furniture: a small desk at the corner of the room, a wardrobe where I put my clothes and some of my teddy bears and a warm bed. Although it looks plain at first, but then I decorated it with some hand – made flowers so it looks amazing now.

Please send me your letter as soon as posible.

Best regards,

Huong/Mary/Jasmine/…

 1 khoang cho so nguoi la

                                     8 x 12 =96 (nguoi)

                            1 toa cho so nguoi la

                                     96 x 1 = 96 (nguoi)

                             can so tao tau la

                                      1200 : 96 = 12.5 (toa)

                            vay can it nhat 13 toa tau

                                   d/s : 13 toa tau

Đáp án : a 

$\frac{526\times 637+448}{637\times 527-189}$ 

$=\frac{526\times 637+448}{}$

$=\frac{526\times 637+448}{}$

$=\frac{526\times 637+448}{}$

$=1$