352+31等于几?还有31+25等于几

352+31等于几?还有31+25等于几 几除几等于28余31 31英寸等于几厘米? 31码等于几尺 3＋31等于几 2^31-1 等于几 13除以31等于几 五加二等于几还有五乘四等于几 一加一等于几还有2加2等于几 25+25等于几? 25-56等于几 18+25等于几 1+25等于几 9.8*25等于几 333-25等于几 60-25%等于几 等于几? 等于几?