Question

递等式计算，能简便的用简便方法。23·6x99＋23·6，（8·56一4·6）÷4·4

Answer 1

(8.56-4.6）÷4.4
=(856－460）÷440
=396÷440
=396÷(）
=396÷

追答

(8.56-4.6）÷4.4
=(8.56×100－4.6×100）÷4.4×100
=(856－460）÷440
=396÷440
=396÷4÷110
=99÷110
=99÷11÷10
=9÷10
0.9

Answer 2

23.6X99十23.6
=23.6X(99十1)
=23.6X100
=2360

追答

23.6X99十23.6
=23.6X(99十1)
=23.6X100
=2360

(8.56一4.6)÷4.4
=3.96÷4.4
=0.9