Using Addition to Subtract – Gr 1, 2, 3
{"Image DocumentName": "Using Addition to Subtract \u2013 Gr 1, 2, 3", "Image ImageDescription": "Concept: Subtraction. Meaning: This is a form of part-part-whole representation. Thinking of addition as: part + part = whole. Thinking of subtraction as: whole \u2013 part = part. Example: for 12 \u2013 5. think 5 + ____ = 12. so 12 \u2013 5 is 7.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}