45乘45加55乘55简便计算

2024-11-02 18:03:40
推荐回答(2个)
回答(1):

45x45+55x55
=45x45+55x(45+10)
=45x45+55x45+55x10
=45x(45+55)+550
=45x100+550
=4500+550
=5050

回答(2):

45×45+55×55
=2025+3025
=5050