15.3乘99加1.53简便计算

2025-03-11 16:15:58
推荐回答(1个)
回答1:

15.3×99+1.53
=15.3×(100-1)+1.53
=15.3×100-15.3×1+1.53
=1530-15.3+1.53
=1516.23