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warrenm's profile
Warren Moore
Warren Moore
Warren Moore
@warrenm

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Warren Moore

@warrenm

Software engineer specializing in mobile graphics and augmented reality. Author of “Metal by Example”

San Francisco, CA
metalbyexample.com
Joined April 2008

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    1. azamsharp‏ @azamsharp 15 Nov 2017

      I cannot understand the question for my kid who is in 1st grade. Any ideaspic.twitter.com/qORmTdycZj

      8 replies 0 retweets 3 likes
      Show this thread
    2. Warren Moore‏ @warrenm 15 Nov 2017
      Replying to @azamsharp

      7+6=1+6+6=1+12=13 The core skill is recognizing that 7 is close to 6, so you can pair it with the other 6 to make an “easier” sum (6+6).

      2 replies 0 retweets 4 likes
    3. azamsharp‏ @azamsharp 15 Nov 2017
      Replying to @warrenm

      I am still confused about second line since you cannot use doubles to make 13. 6+6=12

      1 reply 0 retweets 0 likes
    4. Warren Moore‏ @warrenm 15 Nov 2017
      Replying to @azamsharp

      Right. You take the “remainder” from the paired number (7-6=1) and add it back in later. It’s just fancy rearrangement of terms.

      1 reply 0 retweets 0 likes
    5. azamsharp‏ @azamsharp 15 Nov 2017
      Replying to @warrenm

      I get it now! Thanks ! This is harder than writing an iPhone app ;)

      1 reply 0 retweets 1 like
      Warren Moore‏ @warrenm 15 Nov 2017
      Replying to @azamsharp

      No worries! I admit being absolutely baffled by Common Core on first contact, but a lot of it makes sense on further thought. Here’s a good example:https://www.youtube.com/watch?v=Sfi4QUlQ4co …

      4:10 PM - 15 Nov 2017
      0 replies 0 retweets 0 likes

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