Created by
Requel
- Math
- Addition-property
- Age 5+
-
level: 2
- English
คำแนะนำของผู้เขียน
In commutative addition, once the sign stays the same, the position of the numbers do not matter.
Created by
level: 2
In commutative addition, once the sign stays the same, the position of the numbers do not matter.
