a/ 525.5:225+|-125|
=525.5:225+125
=525.51:225+53
=525+1-25+3
=54
b/232:[315-(230+8)]
=232:[315-230-8]
=232:77
= phần b đề sai
c/(-1732)+7376-(-1998)+(-2546)
=-1732+7376+1998-2546
=7642-2546
=5096.
a ) 525 . 5 : 525 + l - 125 l
= 525 . 51 : 525 + 125
= 525+1-25+3
= 54
Giup minh giai cau nay voi [-12].47+[12].52+[12]