At first, the children have 10*7=<<10*7=70>>70 books

With their teacher, they have 70+8=<<70+8=78>>78 books

# Answer

78
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
In a classroom, 10 children have 7 books each. Their teacher brings another 8 books to the classroom. How many books are in the classroom altogether?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
78
In a classroom, 10 children have 7 books each. Their teacher brings another 8 books to the classroom. How many books are in the classroom altogether?
train