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【计算987654321×123456789-987654320×123456788=______.】
计算 987654321×123456789-987654320×123456788=______.
1回答
2020-02-01 01:26
【计算987654321×123456789-987654320×123456788=______.】
计算 987654321×123456789-987654320×123456788=______.
987654321×123456789-987654320×123456788
=987654321×(123456788+1)-987654320×123456788
=987654321×123456788+987654321-987654320×123456788
=(987654320+1-987654320)×123456788+987654321
=123456788+987654321
=1111111109
故答案为:1111111109.