用简便计算472×21+528×43+472×22?

2025-04-16 07:24:48
推荐回答(1个)
回答1:

简便计算
472×21+528×43+472×22
=472x(21+22)+528x43
=472x43+528x43
=(472+528)x43
=1000x43
=43000