The following website is a great tool for you at home when it comes to Year 1 Math. It is publishing daily lessons and activities for you to work on at home: https://whiterosemaths.com/homelearning/year-1/
Us teachers loves this website and we hope you do too! Remember, keep counting in 2s, 5s and 10s and practise making different amounts with coins. Set yourself some challenges such as jumping 73 times! Make sure you count every jump. count backwards from 100 and write the numbers down if you fancy a challenge. What other challenges can you come up with?