https://da.khanacademy.org/math/cc-fifth-grade-math/imp-place-value-and-decimals/imp-decimal-place-value-intro/e/value-of-a-decimal-digit

Ganga og deila

https://docs.google.com/forms/d/e/1FAIpQLSefQaWm3D6DxjpWhvycCRi6VTEkjbpvCuutYDyEIyN13wU5wg/viewform?usp=header

file:///C:/Users/hm1405o8/Downloads/Ngativ%20t%C3%B8l%201.pdf

Roknispøl

https://play.numberhive.org/lobby

https://beastacademy.com/all-ten

Tangram

https://www.youtube.com/watch?v=aj3Hk5EbQvM&list=PLbaggBHTHMo8MDuQtQMuezmiSQnlv8HRG

a) 3,5+5 =  
b) 7 +4,9 = 
 c) 7,5+4,6 = 
 d) 37,7 + 8,4 =  
e) 8,8 +44,5 =  
f) 7,3+57,8 = 
 g) 28,7 +12,8 =

https://sysform.dk/images/2016/Saet2-4sup/Saet2-4sup.htm