Sagot :
Answer:
SANA MAKATULONG po
Step-by-step explanation:
1.
= (+345)+(654)
= 345+654
= 999
2.
= (+345)+(-111)
= 345+-111
= 345-111
= 234
3.
= (-900)+(+99)
= -900+99
= -801
Answer:
SANA MAKATULONG po
Step-by-step explanation:
1.
= (+345)+(654)
= 345+654
= 999
2.
= (+345)+(-111)
= 345+-111
= 345-111
= 234
3.
= (-900)+(+99)
= -900+99
= -801