Model Subtraction: Reteach
In this subtraction worksheet, students look at pictures of animals, covering the ones that are "leaving" the group, and write how many are left. Houghton Mifflin text is referenced.
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Number and Operations: Webbing Our Way Through Numbers
Second graders explore estimation and place value. In this place value lesson plan, 2nd graders estimate and construct numbers while working with spider activities. Students use addition and subtraction to compare estimates. Resources...