Media Summary: Decompose the addends with expanded form and add by the place values. 48+81 49+80 50+80=130 130-1=129 Answer 129. Here's a different approach to subtraction problems that you'll find to be very similar to "Counting Back".
Number Talk Addition - Detailed Analysis & Overview
Decompose the addends with expanded form and add by the place values. 48+81 49+80 50+80=130 130-1=129 Answer 129. Here's a different approach to subtraction problems that you'll find to be very similar to "Counting Back". This project was created with Explain Everythingâ„¢ Interactive Whiteboard for iPad. Week 5
