How To Write A Memo On A Check . You can enter it as either $110.97” or “110 97/100”. By writing a check for a different amount than originally agreed upon and writing “payment in full” on the check, you are essentially making a new offer. How To Write A Check in 6 Easy Steps from wellkeptwallet.com You may also like article writing examples & samples. For example, january 1, 2022, 1/1/22, or any other format. Also, use all capital letters, which are harder to alter.