44____33 68____86 60+6____29 24____20+4 40角____3元
56____50+4 86-80____7 55-5____50 43____34 3元____2元9角
— Is she your ____ (mother, sister)?
— Yes. She is.
图中表示我国南北方地理分界线的是( )
81+23+68+32+19=____