Final answer:
To calculate the new total of 3rd grade students, we add the original number of boys to the 24 new enrollments, which gives us 158 boys. Adding this to the original 118 girls, we get a total of 276 3rd grade students. A strip diagram represents both quantities and the new total is calculated using addition.
Step-by-step explanation:
To determine the total number of boys and girls in 3rd grade after 24 more boys enroll, we start with the initial numbers: 134 boys and 118 girls. When 24 more boys enroll, the new number of boys will be 134 boys + 24 boys, which equals 158 boys. The total number of students in 3rd grade is then the sum of the number of boys and the number of girls, which is 158 boys + 118 girls = 276 students.
A strip diagram can help visualize the parts of this problem:
The equation to represent the total number of 3rd grade students after the enrollment of more boys is:
Total students = Number of boys + Number of girls
Total students = 134 + 24 + 118
Total students = 158 + 118
Total students = 276