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Add Two-Digit Numbers (With Regrouping)

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Add Two-Digit Numbers (With Regrouping)

TEKS Math: 2.4.B

(B) Add up to four two-digit numbers and subtract two-digit numbers using mental strategies and algorithms based on knowledge of place value and properties of operations

CCSS Math: 2.NBT.7

2.NBT.7 Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.

This number sense lesson focuses on adding numbers (two digits long). The lesson includes research-based strategies and questions that help prepare students for assessments. In this lesson, students add the digits in the ones place and regroup if the sum is ten or more. Then, they add the digits in the tens place. Finally, students read the addition problem and the sum aloud. In addition to the lesson, there are seven pages of Independent Practice and review with questions modeled after current adaptive testing items.

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Grades:
2
Subjects:
Math

Standard Alignments:

TEKS Math: 2.4.B

(B) Add up to four two-digit numbers and subtract two-digit numbers using mental strategies and algorithms based on knowledge of place value and properties of operations

CCSS Math: 2.NBT.7

2.NBT.7 Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.

Log in to view this lesson. If you do not have an account, subscribe now and begin your free 30 day trial.

Grades:
2
Subjects:
Math

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