In this multi-step exercise, students discover how to add three numbers within 20 by applying the associative property of addition.
| Standards Body | Codes |
|---|---|
| CCSS-M | 1.OA.B.3mb |
| NCTM | PK2.A.B.4, PK2.A.C.6 |
| TEKS | 1.5G |
MathBRIX is an adaptive learning platform designed to help students in grades K-2 visualize and master critical math concepts.
