Question

69×83 17×69的简便运算列竖式？

Answer 1

69×83+17×69
＝69×(83+17)
＝69×100
＝6900

Answer 2

69×83+17×69
=69×（83+17）
=69×100
=6900

Answer 3

69×83+17×69
=69×（83+17）
=69×100
=6900

Answer 4

69×83+17×69

＝69×(83+17)

＝69×100

＝6900

Answer 5

原式=69×（83+17）
=69×100
=6900