Math.2.NBT.8 2.NBT.B.8

Common Core Standards Añadir y restar 10 o 100
Grade:	2nd Grade
Standard:	Math.2.NBT.8 or 2.NBT.B.8
Description:	Mentally add 10 or 100 to a given number 100–900, and mentally subtract 10 or 100 from a given number 100–900.

Common Core Standards