Look closely to see if you can find D.C.’s error in his addition.
Lesson 202
Math
3rd Grade
Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. Use visual models [...]
Kindergarten
Can you help Dotson count the farm animals?
1st Grade
Dotson needs your help with his number bonds showing different ways to make 10.
