1) When adding a negative number it is essentially taking away the negative number if it had been positive:
6+(−6)=6−6
If this is the step you weren't confident with : Imagine you have $6 in the bank and you want to buy a ball for $6. Even though the bank would add the value of the ball to your account they would add a negative 6 dollars (-$6). So when adding this negative value, you would end up with a lower number, in this case, 0.
2) And as you know, anything minus itself is 0:
6−6=0
For future reference:
plus minus (+-) or minus plus (-+) just mean minus (-)
minus minus (--) or (plus plus) (++) just mean plus (+)
Answers & Comments
Answer:
1. -36
2. -28
3. 63
4. -40
5. 72
6. 9
7. -12
8. -4
9. 24
10. -11
Answer:
1. 0
Explanation:
1) When adding a negative number it is essentially taking away the negative number if it had been positive:
6+(−6)=6−6
If this is the step you weren't confident with : Imagine you have $6 in the bank and you want to buy a ball for $6. Even though the bank would add the value of the ball to your account they would add a negative 6 dollars (-$6). So when adding this negative value, you would end up with a lower number, in this case, 0.
2) And as you know, anything minus itself is 0:
6−6=0
For future reference:
plus minus (+-) or minus plus (-+) just mean minus (-)
minus minus (--) or (plus plus) (++) just mean plus (+)
sorry I only know one