Prepare the correcting journal entries for the following:

1. The bank column of the cash receipts journal was over added by $30, but the individual receipts were correctly entered and posted.
2. Timber worth $880 (including GST) purchased on credit from Shady Timber Mill was incorrectly debited to Purchases. GST amount $80
3. A cheque for $1,210 received for a kitchen bench slab was incorrectly posted from the cash receipts journal as a credit to the Sales account.
4. Sold goods on credit to Lennox Furniture for $3,300 (including GST of $300) and incorrectly posted the item from the Credit Sales Journal by debiting Kingscliff Kitchens.