已知m=987654321×123456789 n=987654322×12345678,比较m和n的大小

问题描述:

已知m=987654321×123456789 n=987654322×12345678,比较m和n的大小

m=987654321×123456789=987654321×(123456780+9)=987654321×123456780+987654321×9=9876543210×12345678+987654321×9>987654322×12345678+987654321×9=n+987654321×9∴m>n答案:m>n