find : 1 -2 +3 -4 +5-6+_+17-18+19-20
Answers
Answered by
22
1 -2 +3 -4 +5-6+17-18+19-20
= -5
= -5
manya34:
but answer is - 10
Answered by
12
Heya folk
1-2+3-4+5-6+17-18+19-20
=1+3+5+17+19-2-4-6-18-20
=45-50
=-5
1-2+3-4+5-6+17-18+19-20
=1+3+5+17+19-2-4-6-18-20
=45-50
=-5
Similar questions