Question

666乘667加222乘999的简便计算方法？

Answer 1

原式=666x667+222x3ⅹ333
=666(667+333)
=666x1000
=666000

Answer 2

666×667+222×999
＝222×(3×667+999)
＝222×3×(667+333)
＝666×1000
＝666000

Answer 3

解：666×667+222×999
=666×667+222×3×333
=666×667+666×333
=666×（667+333）
=666×1000
=666000

Answer 4

666×667+222×999=666×667+222×3×333=666×(667+333)=666×1000=666000

Answer 5

666×667+222×999=666×667+222×3333=666×（667+333）=666×1000=666000