Math Mysteries
See if you can figure out where D.C.’s mistake is.
Lesson 204
Math
2nd Grade
Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. Think through creating [...]
Abracus needs your help to figure out where is error is in his addition problem!
3rd Grade
Warm up with a Mystery Math Mistake as you add two 3-digit numbers using a partial sums strategy. Use a [...]
