Simplify the following text for a Grade 8 native English-speaking person.
Original: Maltose ( Ë mÉ ' ltoÊ z ) , or malt sugar , is a disaccharide formed from two units of glucose joined with an Î ( 1 â ' 4 ) bond .
Simplified: Maltose ( known as malt sugar ) is a disaccharide ( sometimes called di-glucose ) . It is formed from two glucose molecules joined together at carbons 1 and 4 .