In this 2.NBT.1 Second Grade Common Core Lesson, students understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones.

This 4.NBT.2 Fourth Grade Common Core Lesson includes 4.NBT.2 Worksheets, 4.NBT.2 Activities, 4.NBT.2 Assessment, and 4.NBT.2 Poster.

In this 2.NBT.3 Second Grade Common Core Lesson, students will read and write numbers to 1000 using base-ten numerals, number names, and expanded form.

In this 5.NBT.1 Fifth Grade Common Core Lesson, students recognize that in a multi-digit number, a digit in one place represents 10 times as muchto its right and 1/10 to its left.

Using Recognizing Numbers Worksheet, students count and identify numbers by the items in a set to build their base ten knowledge.

Using Rainbow Place Value Activity, students Match each place value card to the correct number on the pot of gold to build their number sense skills.

In this 5.NBT.2 Fifth Grade Common Core lesson, studentsexplain patterns in the number of zeros in products when multiplying and dividing by powers of 10.

Using Place Value Matching Worksheet, students match base ten blocks to standard form numbers to build number sense skills.

Using Tens and Ones Matching Worksheet, students match two digit numerals to base ten block pictures to build their number sense.

This Mentally Subtracting 10 or 100 Worksheet gives 2nd Grade students eight quick number problems and two story problems, with an answer key included, so they build fast and confident place value thinking.

In this Round it Up or Down Ice Cream Activity, students use place value understanding to round whole numbers to the nearest 10 or 100.

Using thisTens Place Value Worksheet, students build their knowledge of the tens place value and the base ten system.

UsingEat Place Value Worksheet, students tell the value of the underlined digit in a three digit number.

Using this K.NBT.1 Kindergarten Common Core Lesson, students build numbers 11-19 using ten frame mats in order to build number awareness.

In this 1.NBT.5 First Grade Common Core Lesson, students practice finding 10 more and less than a given number.

In this 2.NBT.3 Common Core Activity, students will read and write numbers to 1000 using base-ten numerals, number names, and expanded form.

In this PBJ Place Value Activity, students read and write multi-digit whole numbers using base-ten numerals, number names and expanded form.

In this Let's Make a Number Hundreds Tens Ones Activity, students understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones.

Using this K.OA.3 Kindergarten Common Core Lesson, students match equations to ten frames to build an understanding of number sense.

Using Place Value Party Place Value Activity, students build four digit numbers using a place value chart to build their number sense skills.