土节和洋节前呼后拥地纷纷到来,孩子们都要收到一大堆贺卡.这些东西,买起来价钱很贵,一旦时过境迁,很少有不成为废物的.现在我们不妨废物利用,来做一个别开生面的游戏. 把贺卡裁小,制成十一张纸片,在每张纸片的两面都写上一个两位数,反面的数恰好与正面的数左右交换位置,即: After the festival of earth festivals and foreign festivals, the children have to receive a lot of greeting cards. These things are very expensive to buy. Once there are times, there are very few things that will not become waste. Now we may wish to use waste. Make a special game. Decrease your greeting cards into 11 pieces of paper. Write a double-digit number on each side of each piece of paper. The reverse number is exactly the same as the positive numbers, ie: