10+10-10+10-10+10-10+10=
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Answered by
3
Step-by-step explanation:
10+10-10+10-10+10-10+10=20
Answered by
3
Step-by-step explanation:
20 - 20 - 20 - 20
20 - 40 - 20
- 20 - 20
- 40
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