Expanding Numbers Worksheet – 3rd Grade Base 10 & Place Value Practice

Build strong base 10 skills with the Expanding Numbers Worksheet. This third grade math printable keeps the focus on one skill so students can practice it with confidence.

Learning objective: Students will build accuracy and confidence with base 10 through short, focused practice that reinforces what was taught in class.

Why it works: Short, focused practice is one of the best ways to help third grade students remember a new skill. Clear directions mean students can get started quickly, and the simple format makes it easy for you to spot who needs more help.

What's included:

• 1 printable worksheet page

• Clear, student-friendly directions

• Answer key (1 page)

• Cover page

How it's organized: The page opens with these directions: "Read each expanded form. Then write the number in standard form below." Students then complete the practice items in order and check their work before turning it in.

Grade level: Designed for third grade students. It also works well for second grade and fourth grade students who need extra practice or a fresh review.

How to use it: Use it for whole-group practice, small-group instruction, independent work, centers, morning work, homework, or an emergency sub plan.

Answer key: An answer key is included, so you can check work quickly or let students self-correct.

Teaching tips and variations:

• Slip the page into a sheet protector so students can practice again with dry-erase markers.

• Project the page and solve one or two items as a class before students work on their own.

• Send it home as homework so families can see what their child is learning in math.

Skills covered: Base 10, Place Value, Math

Standards: Supports Common Core 3. NBT.A.2, 3. NBT.A.1.

File type: PDF, ready to print.

Number of pages: 3 (1 worksheet page, 1 answer key page, 1 cover page).

This printable is part of the Have Fun Teaching collection of math resources for elementary classrooms and homeschools. Visit our shop for more practice pages on related skills. Have Fun Teaching on Teach Simple