Math Mom Teacher
Activities
Teen numbers
10 and some more
Understanding Teen Numbers Addition
Build 11
Put ones on top of the 10.
11
12
13
14
15
16
17
18
19
Drag or tap
Next tower
10
+
=
11
+
10
=
11
1
2
3
4
5
6
7
8
9
0
Delete
Reset