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Finding Differences

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we are going to learn to use what we learned about counting on and Counting back and comparing numbers to take your picture of a little Aquarium there's also some seahorses why do horses 1 2 3 4 5 6 7 9 + 3 C so if I asked you which one has more other fish are more 9 is of course more than three everyone I asked you which has the few are seahorses or the other fish with the seahorses accounting you could sort of just very quickly see that they're not there not as many seahorses as there are other one thing I want to make sure you remember that like it doesn't matter which direction you always end the same number it doesn't really matter so we now know which one has more and which one has less let me erase the more and fewer so let's see what we're going to do to figure this out is how many so to figure out how many more there are what we do is reduce matching this is right there we have so what we do is we count these other fish or more other four so we have six more we can also say that we have six fewer horses right so that we just completed we match them up and then we figured out how many more so we sort of took away these they were all messed up what was left over what's the difference you want to go to the Whiteboard that was fancy there's another way to think about all this what we could do is we could stay can I show my circles do this is the other fish, there are nine of them seahorse let me see easy to to figure it out now I know that I just 256 6 more than there are seahorses

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Finding Differences

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