1. (-8)+(-7)
2. (+11)+(+8)
3. (-23) + (+17)
4. (+14) + (-7)
5. (+15) + (-15) DI 199
2. (+11)+(+8)
3. (-23) + (+17)
4. (+14) + (-7)
5. (+15) + (-15) DI 199
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Answers & Comments
Answer:
1) - 15
2) 19
3) - 6
4) 7
5) 0 ?
Step-by-step explanation:
(+) (+) = +
(-) (+) = +-
(-) (-) = -