2nd Grade Numbers and Operations in Base Ten Bundle- 2nd Grade Math NBT Units

This is a second grade math bundle, that contains all 9 standards within the Numbers and Operations in Base Ten (NBT) 2nd grade Common Core domain. Within this domain, there are full lesson plan units that cover place value, 3-digit numbers, ways to represent numbers, comparing numbers, add and subtract 2-digit and 3-digit numbers, and mental math. Every single unit within this bundle comes with lesson plans, differentiated math group activities, math writing activities, interactive notebook activities, worksheets, assessments, and hands-on centers.

What's included in each individual unit:

-Pre-assessment

-3-5 Lesson Plans

----Whole group activity

----Partner practice activity

----MATH group: Math writing, Apply new skills, Teacher time, Hands-on math

----Exit slip

-Post Assessment

What's included in this bundle?

>>2.NBT.1- 3-digit numbers

>>2.NBT.2- Skip counting

>>2.NBT.3- Representing numbers

>>2.NBT.4- Comparing numbers

>>2.NBT.5 (Bonus regrouping intro)

>>2.NBT.5- Adding and subtracting 2-digit numbers

>>2.NBT.6- Adding 3 or 4 2-digit numbers

>>2.NBT.7- Adding and subtracting 3-digit numbers

>>2.NBT.8- Mental math

>>2.NBT.9- Explaining strategies

The 2NBT (2nd Grade Numbers and Operations in Base Ten) activities that are included in my older resources for short answer, centers, printables, and interactive notebooks are similar, but have all been changed to fit these lesson plans. The short answers have different prompts and are now part of MATH groups, the printables & interactive notebooks have been updated and are used during the 'Apply new skills' part of MATH groups.

CCSS.MATH.CONTENT.2.NBT.A.1 Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases:

• CCSS.MATH.CONTENT.2.NBT.A.1.A 100 can be thought of as a bundle of ten tens — called a "hundred."
• CCSS.MATH.CONTENT.2.NBT.A.1.B The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six, seven, eight, or nine hundreds (and 0 tens and 0 ones).

CCSS.MATH.CONTENT.2.NBT.A.2 Count within 1000; skip-count by 5s, 10s, and 100s.

CCSS.MATH.CONTENT.2.NBT.A.3 Read and write numbers to 1000 using base-ten numerals, number names, and expanded form.

CCSS.MATH.CONTENT.2.NBT.A.4 Compare two three-digit numbers based on meanings of the hundreds, tens, and ones digits, using >, =, and < symbols to record the results of comparisons.

CCSS.MATH.CONTENT.2.NBT.B.5 Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

CCSS.MATH.CONTENT.2.NBT.B.6 Add up to four two-digit numbers using strategies based on place value and properties of operations.

CCSS.MATH.CONTENT.2.NBT.B.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.

CCSS.MATH.CONTENT.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.

CCSS.MATH.CONTENT.2.NBT.B.9 Explain why addition and subtraction strategies work, using place value and the properties of operations.