Americans came to see and learn more about our schools. They walk and look… One of them asked:
– Do you use computers in schools? Ours answer:
– Yes, from first grade. They enter the classroom and see: there are 4 computers standing on the windowsill. The teacher says:
– Sidorov, take 1 computer and put it on the table. Children, how many computers are left on the windowsill?
