subtracting on a number line
{"Image DocumentName": "Subtracting on a Number line", "Image ImageDescription": "To model the difference of 5-3 , you start at 5 and move 3 units to the left. NOTICE: = 5 + (-3) . Subtracting 3 is the same as adding its opposite, -3. You can use the fact that subtracting a number is the same as adding its opposite to find the difference of two integers.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}