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Add. 17. (+5) + (-2) + (-1) 18. (-7) + (-6) + (-2) 19. (+11) + (-9) + (-4) 20. (+4) + (-8) + (+6)
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Add.

17. (+5) + (-2) + (-1)
18. (-7) + (-6) + (-2)
19. (+11) + (-9) + (-4)
20. (+4) + (-8) + (+6)

User Peter Suwara
by
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1 Answer

0 votes

Answer:

17. +5-2-1=+2

18. -7-6-2=15

19. +11-9-4=-2

20.+4-8+6=+2

User Calvert
by
4.6k points
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