Math Mysteries
Abracus needs your help to figure out where the error is in his addition problem!
Lesson 207
Math
2nd Grade
Can you find an error in Springling's open number line?
3rd Grade
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 208
Warm up with a Mystery Math Mistake to hunt for the mistake made counting up on the number line. Use place value cards to practice rounding numbers to the nearest ten and hundred.