Challenge!
10. What is the value of 0-1+2-3 +4-5+6-7 ... + 16-17 + 18 - 19 + 20?
Answers
Answered by
2
Step-by-step explanation:
0-1+2-3+4-5+6-7+8-9+10-11+12-13+14-15+16-17+18-19+20
= 10
Answered by
2
Answer:
0-1+2-3+4-5+6-7+8-9+10-11+12-13+14-15+16-17+18-19+22
=0+2+4+6+8+10+12+14+16+18+20-1-3-5-7-9-11-13-15-17-19
=110-100
=10
Similar questions