Doubling: 2 digit numbers

Double 30 is ____

30 + 30 =

Answer explanation

60

Double 10 is ____

10 + 10 =

Answer explanation

20

Double 20 is ____

20 + 20 =

Answer explanation

40

Double 40 is ____

40 + 40 =

Answer explanation

80

Double 50 is ____

50 + 50 =

Answer explanation

100

Double 60 is ____

60 + 60 =

Answer explanation

120

Double 11 is ____

11 + 11 =

Answer explanation

22

Double 13 is ____

13 + 13 =

Answer explanation

26

Double 14 is ____

14 + 14 =

Answer explanation

28

Double 15 is ____

15 + 15 =

Answer explanation

30