Join Mrs. Gray for a Mystery Math Mistake with D.C. He needs help figuring out the missing parts in his number bonds. We represent numbers 11-19 in more than one way. Episode 318/Kindergarten Math ...

Use Base-Ten diagrams and standard, expanded, and word forms to represent numbers. Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. Find Which One ...

Number representations are different ways of showing a number. You can use numbers, picture, objects and words. For example, here are some different ways of representing the number 3.

We will first solve Shape 1 and Shape 2 to understand the logic.