Bài 3: Trang 148 - sách giáo khoa (SGK) toán tiếng Anh lớp 4Class 4A and class 4B planted 330...

Similarly, Class 4B planted 32 students * 5 trees/student = 160 trees. Therefore, Class 4A planted 170 trees and Class 4B planted 160 trees.

Now, to find out how many trees each class planted, we need to multiply the number of students in each class by the number of trees planted by each student. Class 4A planted 34 students * 5 trees/student = 170 trees.

Since each student in both classes has the same number of plants, we can also say that each student planted 5 trees.

To find out how many trees each class planted, we can divide the total number of trees by the total number of students. So, 330 trees divided by 66 students equals 5 trees per student.

Class 4A and class 4B planted a total of 330 trees. Class 4A has 34 students and Class 4B has 32 students, making a total of 66 students.