《加法和减法》习题一、看图列式。 ( )+ ( )= ( )( )- ( )= ( ) ( )- ( )= ( )( )+ ( )= ( ...
《加法和减法》习题一、看图写算式。 ( )+ ( )= ( ) ( )+ ( )= ( ) ( )- ( )= ( ) ( )- ( )=...