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今天是奶奶的生日,所以淘淘和爸爸买了一个大蛋糕去奶奶家。看到奶奶,淘淘就跑到奶奶跟前,一边递给奶奶最喜欢吃的无糖软面包,一边问奶奶:“奶奶,您今年多大年龄了?”奶奶笑着说:“我听说我们的淘淘在学校数学学得特别棒,还在比赛中获过奖。今天,奶奶要考考你,奶奶今年的年龄加上10除以4,减去15再乘10,恰好是100,你能算出今年奶奶的年龄吗?”淘淘一听这么复杂,该怎么算呢?忽然他想到了办法,就回答说:“奶奶今年90岁了。”奶奶笑着说:“你是怎么知道的呢?”淘
Today is the grandmother’s birthday, so Tao Tao and dad bought a big cake to grandma’s home. See grandmother, Tao Tao went to the grandmother in front, while giving her favorite grandmother to eat sugar-free soft bread, while asked my grandmother: “Grandma, how old are you this year?” Said that our Tao Tao school mathematics in school is particularly good, but also won the competition today, my grandmother to test you, grandma this year’s age plus 10 divided by 4, minus 15 and then multiplied by 10, is exactly 100, Can you figure out the age of this year’s grandmother? “” Amoy Amoy heard so complicated, how to count it? Suddenly he thought of a solution, he replied: “Grandma is 90 years old.” “My grandmother said with a smile: How do you know? ”" Amoy