123+123-246+10-5+20+15=............................................................................................
1 câu trả lời
123+123-246+10-5+20+15
=246-246+10-5+20+15
=0+10-5+20+15
=10-5+20+15
=5+20+15
=25+15
=40
tick cho mk nha bạn
123+123-246+10-5+20+15=............................................................................................
123+123-246+10-5+20+15
=246-246+10-5+20+15
=0+10-5+20+15
=10-5+20+15
=5+20+15
=25+15
=40
tick cho mk nha bạn
