How do you teach three-digit place value?

Extend the base-ten block model: ones cubes, tens rods, and hundreds flats. Have students build numbers like 253 using blocks, then write them in standard form, expanded form, and word form. Worksheets that move between these three representations build flexible understanding.

What is expanded form and why do second graders learn it?

Expanded form breaks a number into its place value components: 426 = 400 + 20 + 6. It shows what each digit is actually worth, which is essential for understanding addition and subtraction algorithms. Worksheets that ask students to convert between standard and expanded form reinforce this understanding.

2nd Grade Place Value & Rounding Worksheets

Ages 7-8 · 11 sub-topics · Free previews · Print-ready PDFs

Free printable place value & rounding math worksheets for 2nd grade students (Ages 7-8). Covers Build a 3-digit number, Missing place value (3-digit numbers), Write numbers in expanded form (3-digit numbers), and more. All worksheets are aligned to Common Core standards.

Written by Adi Ackerman, Head Teacher

2nd Grade Math Place Value & Rounding Clear All

Place Value & Rounding▼

$Build a 3-digit number - 2nd Grade Place Value & Rounding worksheet preview$

Build a 3-digit number

Grade2nd Grade

TopicPlace Value & Rounding

$Missing place value (3-digit numbers) - 2nd Grade Place Value & Rounding worksheet preview$

Missing place value (3-digit numbers)

Grade2nd Grade

TopicPlace Value & Rounding

$Write numbers in expanded form (3-digit numbers) - 2nd Grade Place Value & Rounding worksheet preview$

Write numbers in expanded form (3-digit numbers)

Grade2nd Grade

TopicPlace Value & Rounding

$Write numbers in standard form (3 digit numbers) - 2nd Grade Place Value & Rounding worksheet preview$

Write numbers in standard form (3 digit numbers)

Grade2nd Grade

TopicPlace Value & Rounding

$Hundreds, tens and ones - 2nd Grade Place Value & Rounding worksheet preview$

Hundreds, tens and ones

Grade2nd Grade

TopicPlace Value & Rounding

$Comparing numbers - 2nd Grade Place Value & Rounding worksheet preview$

Comparing numbers

Grade2nd Grade

TopicPlace Value & Rounding

$Ordering numbers - 2nd Grade Place Value & Rounding worksheet preview$

Ordering numbers

Grade2nd Grade

TopicPlace Value & Rounding

$Round to the nearest ten (0-100) - 2nd Grade Place Value & Rounding worksheet preview$

Round to the nearest ten (0-100)

Grade2nd Grade

TopicPlace Value & Rounding

$Round to the nearest ten (0-1,000) - 2nd Grade Place Value & Rounding worksheet preview$

Round to the nearest ten (0-1,000)

Grade2nd Grade

TopicPlace Value & Rounding

$Round to the nearest hundred - 2nd Grade Place Value & Rounding worksheet preview$

Round to the nearest hundred

Grade2nd Grade

TopicPlace Value & Rounding

$Round to the nearest ten or hundred - 2nd Grade Place Value & Rounding worksheet preview$

Round to the nearest ten or hundred

Grade2nd Grade

TopicPlace Value & Rounding

See Place Value & Rounding for other grades

4th Grade 5th Grade

Frequently Asked Questions

Second graders should understand three-digit numbers as hundreds, tens, and ones (CCSS 2.NBT.A.1). They should read and write numbers to 1,000, compare three-digit numbers using place value understanding, and use expanded form (345 = 300 + 40 + 5).

More math worksheets

Explore all of our 2nd grade math worksheets, covering skip counting, place value & rounding, addition, subtraction, and more.

What is ClassWeekly?

ClassWeekly offers free worksheets and printable learning resources for kids in preschool to grade 5. All worksheets are aligned to Common Core standards and designed by educators. Become a member to access the full library and download unlimited PDFs.