Math Mysteries
Abracus needs your help to figure out where is error is in his addition problem!
Lesson 203
Math
4th Grade
Explore the Multiply by 5 facts using the grouping of objects, counting by fives, and arrays. Compete against characters to see who finds the product first. Practice with the commutative property of multiplication and 5's.
Kindergarten
Represent 6 with a 10-frame, dot card, and Rekenrek (counting buddy) to tell if Dotson made a Mystery Math Mistake. [...]
1st Grade
Help D.C. find the missing addends in his number bonds.