dạ em học lớp 5

Đổi 3/4 kg = 0,75 kg

12 hộp kẹo to cân nặng là :

12 x 0,75 = 9 ( kg )

1 hộp kẹo bé cân nặng là :

0,75 x 2/3 = 0,5 ( kg )

12 hộp kẹo bé cân nặng là :

0,5 x 12 = 6 ( kg )

Người đó mua tất cả là :

9 + 6 = 15 ( kg )

Đáp số 15 kg kẹo

Chúc bạn có 1 kì thi cuối kì đạt kết quả cao nhất !

hình đâu bạn

read the passage and fill in the gap with one suitable word:

Huy hates (1)..................................... on the farm. He doesn't have many friends here. He has to travel 8 kilometers to school everyday. When Huy wants to go (2).................................... at the weekends, he has to go more than 10 kilometers to the (3)......................................... town and the last bus back is very early - about one hour later. That's why he (4)................................... has enough time to do the whole thing. He wants to live in the city with good shops and places to go. He also needs more chance to study and widen the knowledge about the world around him. Huy (5) .................................... his best to study well and hopes to get a good job in the city in the future.

WORDFORM

1. Ba will be a …………………….. artist someday. FAME

2. It’s very ……………… ……of you to help me with my homework. HELP

3. There was a wide ……………………….. of vegetables on display. SELECT

4. Mr. Ba is the same…………………………as my father. OLD

5. Mr. Pike didn’t go to work yesterday because of his …………….. ILL

6. ………………… , the barber cut my hair too short. LUCK

7. This is the biggest………..in the city. BUILD

8. I don’t know the …………………..………….. of that river. LONG

9. I have an ................. with the doctor this morning. APPOINT

10. In her youth she is a very ________________ girl. beautify

11. My younger brother was so much ________________ by “Tayduky’ film. interest

Rewrite the sentences without changing its meaning:

1. Roller-skating doesn't interest Sonia.

=> Sonia isn't ............................................................

2. Hoa is better at playing tennis than me.

=>Hoa plays ..............................................................

=>I don't ....................................................................

3.I don't make friends easily.

=>I have a lot ............................................................

Gọi số phải tìm là ab

Nếu viết thêm chữ số 3 vào bên trái ab, ta được 3ab

Theo bài ra ta có: 3ab=5xab

                          300+ab=5xab

                          300=4ab

                          ab=300:4=75