0:49Using counters and a ten frame to subtract within 20 | Teaching Elementary MathMathBell679 viewsView & Download
1:52Ex: Use Color Counters to Show Subtracting a Negative is the Same As Adding a PositiveMathispower4u28.0K viewsView & Download
2:27Grade 2 Math: Subtraction Rocks with Base Ten BlocksVirtual Elementary School601.4K viewsView & Download
7:27How to subtract numbers using counters | CBC Grade 1 Math Lesson | EasyElimuEasyElimu Learning Innovations838 viewsView & Download
0:51Subtracting with Ten Frames | How to Subtract | Khan Academy KidsKhan Academy Kids51.9K viewsView & Download