31乘以41分之29加41分之69乘以29用简便方法计算

2024-10-22 13:05:45
推荐回答(1个)
回答1:

31x29/41+69/41x29
=31x29/41+69x29/41
=(31+69)x29/41
=100x29/41
=2900/41