a= bao nhiêu chả được

Ha Long Bay is one of the seven natural wonders in the world. Ha Long Bay is located in Quang Ninh province which is in the north of Vietnam. It is nearly 200km from Hanoi. So it takes you about 4 hours by car. You can also travel there in a coach or even in a helicopter on Saturday. The best season to visit Ha Long is in summer when the weather is warm and sunny. Ha Long Bay has many beautiful caves and islands; therefore, you must take a boat trip to enjoy the view here. You certainly must take pictures to remember the trip better, too. If you are an active person, you must do the water sports here like swimming, sailing, and windsurfing. One more thing, you must try the seafood here because it is incredibly fresh and delicious.

58

55

35

\(72,88x0,01\)

\(=0,7288\)

k mik nhak làm ơn đó 

Lớp 4b có số học sinh là

28:7x6=24(học sinh)

k nhé

không ai k cho mình mình k lại

* 8 * 3 x 9 = 70 * 7 *

-->  * 8 * 3 x 9 = 70 * 77

Vì chia hết cho 9 nên tổng các chữ số phải chia hết cho 9.

Ta có 7 + 0 + 7 + 7 = 21. --> * = 6

* 8 * 3 = 70677 / 9

* 8 * 3 =  7853

Còn đâu bn làm nốt nhe

số số lẻ có 4 chữ số là :

( 9999 - 1001 ) : 2 + 1 = 4500 ( số )

Đáp số : 4500 số

mẫu số chung là 12

1/4 = 1x3/ 4x3 = 3/12

1/3 = 1x4 / 3x4 = 4/12