25+68+68+68+74简便运算

2025-04-18 23:05:27
推荐回答(2个)
回答1:

25+68+68+68+74
=25+74+68×3
=25+75-1+(70-2)×3
=100-1+210-6
=310-7
=303

回答2:

25+68+68+68+74
= 25 + 70 + 70 + 70 + 75 - 7
= (25 + 75 ) + 70 *3 - 7
= 310 - 7
= 303