67×99+67的简便运算该怎样算？

Question

67×99+67 简便运算

Answer 1

67×99+67=67x（99+1）=67x100=6700

Answer 2

67X99+67
=67(99+1)
=6700

Answer 3

67×99+67
＝67×(99+1)
＝67×100
＝6700

Answer 4

67×99+67

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=67×99+67×1

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=67×（99+1）

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=67×100

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=6700

Answer 5

你好
67*99+67
=67*（99+1）
=67*100
=6700