<human>:  Yanna baked twenty butter cookies and forty biscuits in the morning. In the afternoon, she baked ten butter cookies and twenty biscuits. How many more biscuits did she bake than butter cookies?
<bot>: How many butter cookies did Yanna bake in the morning? ** There were 20 + 10 = <<20+10=30>>30 butter cookies.
How many biscuits did Yanna bake in the morning? ** And, there were 40 + 20 = <<40+20=60>>60 biscuits.
How many more biscuits did Yanna bake than butter cookies? ** Therefore, she baked 60 - 30 = <<60-30=30>>30 more biscuits than butter cookies.
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