The following items appear on a bank reconciliation:

1. Outstanding cheques

2. Bank error: The bank credited our account for a deposit made by another bank customer.

3. Service charge

4. Deposits in transit

5. NSF cheque

6. Bank collection of a note receivable on our behalf

7. Book error: We debited Cash for \(\$ 100\). The correct debit was \(\$ 1,000\).

Classify each item as

(a) an addition to the bank balance,

(b) a subtraction from the bank balance,

(c) an addition to the book balance,

(d) a subtraction from the book balance.