Question

Find 36 -(-64) and (-64)-36. Are they equal

Answer 1

From the commutative law of Subtraction [a-b = b-a]
Let,
$$a=36, b=-64$$
Left hand side (LHS),
$$= {36 – (-64)}$$
$$= {36+64}$$
$$=100$$
Right hand side (RHS),
$$= (-64-36)$$
$$=-(64+36)$$
(Take out the –ve sign outside and do subtract smaller from bigger number)
$$=-100$$
By comparing LHS and RHS,
$$LHS \neq RHS$$