(12 24 80)x25的简便计算?

2025-03-19 01:01:46
推荐回答(2个)
回答1:

(12+24+80)×25
=(3+6+20)×4×25
=29×100
=2900

回答2:

(12+24+80)×25
=12×25+24×25+80×25
=300+600+2000
=2900