Second Grade Common Core Math 2 NBT.8 Mentally Add or Subtract 10 or 100 2.NBT.8 Practice provides two ways for students to practice mentally adding or subtracting 10 or 100 to a given number.
It includes 40 distinct problems in two sets (129 slides in all!), with and without following answer slides. The PowerPoint file can be used on computers, or Promethean Activboard and Smart boards.
Take a look at the preview file and buy today for your students benefit!
Standard 2.NBT.8 Use place value understanding and properties of operations to add and subtract.
8. Mentally add 10 or 100 to a given number 100–900, and mentally subtract 10 or 100 from a given number 100–900.