Mentally add 10 or 100 to a given number 100-900, and mentally subtract 10 or 100 from a given number 100-900
The apps, sample questions, videos and worksheets listed below will help you learn Mental addition and subtraction in steps of 10.
Coherence Map of 2.NBT.B.8
The Coherence Map shows the relationships among the Common Core Standards. The Lumos coherence map not only provides graphical representation and convenient navigation within the standards map but also access to thousands of engaging learning & lesson plan resources such as Practice questions, Videos, Books and Infographics related to every standard. It helps educators and students visually explore the learning standards. It's an effective tool to helps students progress through the learning standards. Teachers can use this tool to develop their own pacing charts and lesson plans.
Standard Description of 2.NBT.B.8
Mentally add 10 or 100 to a given number 100-900, and mentally subtract 10 or 100 from a given number 100-900
