Question

能简便计算就简便计算

Answer 1

6.5×5.8+0.36×58
=0.65x58+0.36x58
=58x(0.65+0.36)
=58x1
=58

Answer 2

6.4×5.8+0.36×58
=0.64×58+0.36×58
=（0.64+0.36）×58
=58

Answer 3

（6.4+0.36）×（5.8+58）=
答案自己算

追答

秋水伊人的是错误的

因为有5.8和58

Answer 4

(6.4+3.6)×5.8

Answer 5

58