Math Mysteries
See if you can figure out where D.C.’s mistake is.
Lesson 203
Math
3rd Grade
Warm up with a Mystery Math Mistake as you add two 3-digit numbers using a partial sums strategy. Use strategies [...]
Kindergarten
Can you help dotson with his counting collection?
Lesson 204
1st Grade
Represent a teen number using a number bond to solve a Mystery Math Mistake. Use Notice and Wonder with a [...]
