SỐ 222 – 23 + 223 – 24 + 224 – 25 + 3 CÓ BAO NHIÊU CHỤC

Bài 5. Số 222 – 23 + 223 – 24 + 224 – 25 + 3 có bao nhiêu chục ?

Problem 6. Over 24 children are members of a sports club. The number of girls is

twice that of the boys. At least how many members does this club have?