this year I had my Children's Day with my parents. They brought me to the central park to see the special childern's show and then bought me a toy cat as present. I ask my dad to buy me a big toy and some cotton candy as well. I enjoyed a lot at this year's Childern's Day.今年我和父母度过了儿童节。他们带我去中央公园看那里的儿童节特别秀，然后还给我买了一只玩具猫做礼物。我要叫爸爸给我买一个大玩具还有棉花糖。我非常愉快地度过了今年的儿童节。给你找了一篇范文，希望对你有帮助吧

新华书店为庆祝六一儿童节，买4套书送一套，每套120元，买5套比原价便宜多少元

4 1=5套
所以 买5套等于便宜1套
所以 120元

新华书店为庆祝六一儿童节，买4套书送一套，每套120元，买5套比原价便宜120元
解：120×5-120×4=600-480=120元