Anne is 2 times as tall as her sister hence 2*(her sister's height) = 80cm

Her sister's height = 80cm/2 = <<80/2=40>>40cm

Bella is 3 times as tall as Anne hence Bella's height is 3*80 cm = <<3*80=240>>240 cm

The height difference between Bella and Anne's sister = 240-40 = <<240-40=200>>200cm

# Answer

200
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Anne is 2 times as tall as her sister while Bella is 3 times as tall as Anne. If Anne is 80cm tall, what is the height difference between Bella and Anne's sister?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
200
Anne is 2 times as tall as her sister while Bella is 3 times as tall as Anne. If Anne is 80cm tall, what is the height difference between Bella and Anne's sister?
train