Question

99×99+99的乘法分配律

Answer 1

99×99+99
=99×（99+1）
=99×100
=9900

Answer 2

99×22+33×34 ＝33×66+33×34 ＝33×（66+34） ＝33*100 ＝3300

Answer 3

99✘99+99=99✘99+99✘1=99✘（99+1）=9900

Answer 4

99×99+99
=99×(99+1)
=99×100
=9900