№158.
1) |4| = 4
|-32| = 32
|6,7| = 6,7
|-8,4| = 8,4
|-23| = 23
|0| = 0
№159.
1) |4,5| + |-2,3| = 4,5 + 2,3 = 6,8
2) |-13| * |-6| = 13*6 = 78
3)
4) |-48| : |-0,6| = 48:0,6 = 480:6 = 80
№160
1) |p| : |k|
2) |8,48| : |-0,08| = 8,48 : 0,08 = 848:8 = 106