3 дм + 7 дм = , 30 + 70 = , 5 дм + 5 дм = , 50+50=

Question

3 дм + 7 дм = , 30 + 70 = , 5 дм + 5 дм = , 50+50=

Answer 1

1) =10 дм=100
2) =100
3) =10 дм=100
4) =100

Answer 2

3дм+7дм=10дм
30+70=100
5дм+5дм=10дм
50+50=100