-10-50÷ 2 2 ×(- 4 5 )-(1-0.

-10-50÷ 2 2 ×(- 4 5 )-(1-0.5)× 2 3 ×[1- (-3) 2 ] .
2025-03-22 16:35:26
推荐回答(1个)
回答1:

原式=-10-50÷4×(-
4
5
)-0.5×
2
3
×(1-9)
=-10+50×
1
4
×
4
5
+0.5×
2
3
×8
=-10+10+
8
3

=
8
3