Answer:
21 i dont kmow
Step-by-step explanation:
The answer is -10. I think about negative numbers on a number line with numbers being behind and in front of the zero. To check the answer you can imagine being on -10 and when it says to minus a number you always know that it’s going to go further into the negative. So -10-10 is -20.
Answer:
9 groups
Step-by-step explanation:
