Which of the following Laws of integers with respect to subtraction are not valid.
a) Commutative law
b) Associative law
c) both a and b
d) none of these
Explanation:because the difference of two are more integers always chang, when we change the order of integers.
Which of the following is called addative identity.
a) 0
b) 1
c) – 1
d) – 0
Explanation:when we add 0 to any integer the result is the integer itself.
i.e. 0 + (+7) = 7
If the sum of two integers is zero, then both integers are called the……..of each other.
a) additive identity
b) additive inverse
c) commutative law
d) associative law
Explanation:if we add 3 and – 3, we get 0.
3 + (–3) = 3 – 3 = 0
Which among the following is true?
a) (–32) + 6 = 6 + (–32)
b) 18 + (–4) = – 4 + (–18)
c) (–38) + 47 = 47 × (–38)
d) (–7 + 4) + 6 = 7 + (4 + 6)
(–) × (+) =……….
a) +
b) –
c)
c) 0
(–) × (–) =……….
a) +
b) –
c)
c) 0
