Place value 2

Students add within 1000 by breaking numbers into hundreds, tens, and ones. They use base-ten blocks and place value charts to model addition of three-digit numbers.

2.NBT.B.7: Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of opera...

Students add three-digit numbers that require regrouping in one or more places. They use drawings and written methods to track the regrouping process.

2.NBT.B.7: Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of opera...

Students subtract within 1000 using models, drawings, and place value strategies. They decompose numbers to subtract when regrouping is needed.

2.NBT.B.7: Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of opera...

Students solve addition and subtraction problems within 1000 and relate strategies to place value. They select efficient methods based on the numbers involved.

2.NBT.B.7: Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of opera...

Students mentally add 10 to a given number between 100 and 900. They notice that only the tens digit changes and explain why using place value.

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.

Students mentally subtract 10 from a given number between 100 and 900. They use patterns and place value reasoning to compute differences quickly.

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.

Students mentally add 100 to a given number between 100 and 900. They observe that only the hundreds digit changes and connect this to place value understanding.

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.

Students mentally subtract 100 from a given number between 100 and 900. They apply mental math strategies and explain their reasoning using place value.

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.