Is 24 an even or odd number?

What number must be added to 10 to make 100? Mathematics · We the Travellers — I What number must be added to 110 to make 1,000? Mathematics · We the Travellers — I Is 12 an even or odd number? Mathematics · We the Travellers — I What number must be added to 13 to make 100? Mathematics · We the Travellers — I