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Subtracting 20 From Numbers Between 50 and 100
In this subtraction learning exercise, students solve 12 problems in which the number 20 is subtracted from a two digit number. This is an online interactive learning exercise that can be printed.
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Recognize Even and Odd Numbers by Forming Partners and Equal Groups
Nobody wants to be the odd man out. The first video in this series uses prior knowledge about making fair teams to teach young mathematicians about even and odd numbers. Pictures and number lines offer support as children learn that even...
6 mins 1st - 3rd Math CCSS: Designed