Daily Maths lessons:

http://www.whiterosemaths.com - free home learning lessons for each year group 

http://www.iseemaths.com

https://www.oxfordowl.co.uk/for-home/maths/

Maths Games:

https://play.ttrockstarshttp - times tables
https://www.topmarks.co.uk/maths-games/daily10—maths games 
https://www.topmarks.co.uk/maths-games/hit-the-button—online tablet friendly games 

Extra Resources: 

https://www.hamilton-trust.org.uk/blog/learning-home-packs/

https://kids.classroomsecrets.co.uk/

https://www.twinkl.co.uk/resources/2014-curriculum-maths-resources/ks1-maths-resources/ks1-maths-resources-year-1 - a wide variety of printable resources for maths, literacy and phonics (4 weeks free for closed schools) 

http://www.mathsphere.co.uk/resources/MathSphereSampleWorksheets.htm - printable maths worksheets, free resources, fun and games. 

https://coolsciencelab.com/math_magician_addition.html - mental maths addition and subtraction (beat the clock)