Practice problem
A number is written in expanded notation as: ◯×100+△×10+□=483\bigcirc\times100+\bigtriangleup\times10+\square=483◯×100+△×10+□=483 What digit could △\bigtriangleup△ equal?
888
808080
444
400400400
333
Type a concept, like “slope” or “photosynthesis”.