(1) Some of the checks in the numbered sequence may have cleared thebank in a previous period and were returned with the bank statementin that previous period.(2) Some of the checks in the numbered sequence may remainoutstanding. If so, they will be returned with the bank statement in alater period when they clear the bank.(3) The issuer of the checks may have voided one or more of the checksin the numbered sequence, perhaps because of making an error inwriting the checks.(4) Occasionally, a check will reach the bank but the bank will incorrectlycharge the check to the wrong account. When the bank detects theerror, it will return the check separately with a note of explanation tothe depositor.