Question

65×55+55×35用简便计算如何计算？

245×55+355×55+200×55

Answer 1

=55ⅹ（65+35）=55ⅹ100=5500

Answer 2

65×55+55×35
=55x(65+35)
=55x100
=5500

Answer 3

（65+35）*55
=100*55
=5500

Answer 4

提取55×（65+35）=5500

Answer 5

55×(65＋35)＝55×100＝5500