A set of dominoes to use in the classroom when learning combinations of 20.
Use this resource to help students identify the different number combinations that make 20.
Print out the dominoes on cardstock and cut them out. Then, store them in a resealable bag.
Individually or in small groups, students connect the dominoes by matching two numbers that make 20, i.e., 2 + 18, 5+ 15, 16 +4.
This resource is great to use as a math center activity.