Correto: 27×5=135, 55÷5=11, 15+135=150, 50-5=45, (23+5)-{25-10}=  , Incorreto: 33+56=100, 48×8=395, 23-5=13, 30÷2=69, 90÷3=30,

Leaderboard

Visual style

Mga Option

I-switch ang template

I-restore ang gi-autosave: ?