Question

2+2×(1*1)=? На ветке СИДЯТ 20 воробьев.Петя кинул камень в одного воробья.Сколько осталось птиц на ветке?

Answer 1

2+2(1*1)=5
воробьёв 19

Answer 2

Let's solve the mathematical expression first:

2 + 2 × (1 * 1) = 2 + 2 × 1 = 2 + 2 = 4

Now, for the second question about the sparrows:

Initially, there are 20 sparrows on the branch. If Petia throws a stone and hits one sparrow, then one sparrow flies away from the branch.

So, after Petia threw the stone, there would be 20 - 1 = 19 sparrows left on the branch.