Build number sense by making tens https://t.co/pW23ooGXVn #making10s #kindergarten #1stgrade http://pic.twitter.com/hdiE0Mdn3A
— Greg Coleman (@MrK5Math) October 30, 2017
via Twitter https://twitter.com/MrK5Math
October 31, 2017 at 08:30AM
Build number sense by making tens https://t.co/pW23ooGXVn #making10s #kindergarten #1stgrade http://pic.twitter.com/hdiE0Mdn3A
— Greg Coleman (@MrK5Math) October 30, 2017
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