Numbers can be shown in many ways, not just as written digits. Explore how to represent numbers using materials such as ...

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 ...

(dramatic orchestral music) (air swooshes) (magic chimes) (Springling boinging) (Dotsan screaming) - [Kids] Math Mights. - Welcome Math Mights, Mrs. Markovich here, and we've got a whole lot of fun ...

1. Why do we break numbers into tens and ones? Choose a two-digit number and explain how partitioning it helps you understand ...