To make the problem less complicated is the reason to add tens.
Answer:
c would be the answer you are looking for and please mark brainliest
Step-by-step explanation:
Answer:
1
Step-by-step explanation:
1 times anything equals the opisite number but in this case you are multiplying 1 by itself 999999999999 times and that equals 1
Answer:
yes
Step-by-step explanation:
Answer:
the 4th one
Step-by-step explanation: