Question

please answers friends Its really urgent help me I will never forget that​

Answer 1

Answer:

Step-by-step explanation:

2) -53

3) 3

4) (10,-20)

5) (5,-10)

6) 210,34,-45,-890

7) 4000+1000=5000

8) (i)  Closure property

    (ii)  Commutative property

    (iii)  Associative property

    (iv)  Additive identity