The document contains a practice worksheet for a 2nd grade mathematics class. It includes exercises where students are asked to write the number before a given number, such as writing 10 before 61 for the number 11. It also contains sentences where students are asked to fill in the blank with the number before a given number, such as filling in 10 for the sentence "Before number of 11 is __". The practice worksheet is for a 2nd grade mathematics class at K.D. Ambani Vidyamandir in Reliance Greens, Jamnagar and is dated June 23, 2020.