Join Mrs. Ignagni for a Mystery Math Mistake with her friend Springling. Can you figure out where she went wrong on her open number line?
Lesson 204
Math
3rd Grade
Warm up with a Mystery Math Mistake as you add two 3-digit numbers using a partial sums strategy. Use a [...]
Kindergarten
Join Mrs. Gray for a Mystery Math Mistake. Dotson needs your help with building one less.
1st Grade
Value Pak needs your help with decomposing teen number, can you help?