4.25÷2.5×101ሢ1.7简便方法?

2025-06-26 11:52:21
推荐回答(1个)
回答1:

4.25×100÷2.5+4.25÷2.5-1.7=425÷2.5+4.25÷2.5-1.7=170+1.7-1.7=170