一个三位数的三个数字和等于15,这个三位数是多少?这样的数最多可以写几个,
问题描述：
一个三位数的三个数字和等于15,这个三位数是多少?这样的数最多可以写几个,
答
159,167,178,186,195,249,258,267,276,285,294,339,348,357,366,375,384,393,429,438,447,456,465,474,483,492,519,528,537,546,555,564,573,582,591,609,618,627,636,645,654,663,672,681,690,708,717,726,735,744,753,762,771,780,807,816,825,834,843,852,861,870,906,915,924,933,942,951,960共70个