Please expert solve this worksheet

Dear student,

1. i. Successor of 279 = 279 + 1 = 280

ii. Predecessor of 500 = 500 - 1 - 499

iii. Predecessor

iv. Successor

v. 0
As we add any real number to 0 then we get the same real number.Hence 0 is additive identity.

vi. 1
As we multiply any real number with 1 it gives the same real number.Hence 1 is multiplicative identity.

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