Second Grade Common Core Math 2 NBT.5 Fluently Add & Subtract Within 100 2.NBT.5 Practice provides two ways for students to practice and fluently add and subtract within 100.
It includes 60 distinct problems in two sets (189 slides in all!), with and without following answer slides. The PowerPoint file can be used on computers, or Promethean Activboard and Smart boards.
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Standard 2.NBT.5 Use place value understanding and properties of operations to add and subtract.
5. Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.