Number Forms - Worksheet 3 - 3rd Grade

Easy

Convert between standard form and expanded form, including numbers with a zero in one place.

easy: Write three-digit numbers in expanded form.

12 problems · 10-15 minutes · Skills: place value, number sense

About This Worksheet

This easy-level worksheet contains 12 problems designed for 3rd Grade students practicing standard, word, and expanded form. Easy worksheets use simpler numbers and straightforward problem types to build confidence and reinforce foundational skills.

Identify ones, tens, hundreds and thousands.

  • Convert between standard form and expanded form, including numbers with a zero in one place.
  • A zero holds a place. It does not move the other digits.

How to Solve: Worked Example

Example Problem: Write 407 in expanded form.
Solution Steps:
  1. The 4 represents 4 hundreds: 400.
  2. The tens digit is 0, so there are no tens to add.
  3. The 7 represents 7 ones.
Answer: 400 + 7
Tip: A zero holds a place. It does not move the other digits.
1
Write 313 in expanded form.
2
Write 595 in expanded form.
3
Write 886 in expanded form.
4
Write 801 in expanded form.
5
Write 445 in expanded form.
6
Write 878 in expanded form.
7
Write 673 in expanded form.
8
Write 449 in expanded form.
9
Write 130 in expanded form.
10
Write 778 in expanded form.
11
Write 242 in expanded form.
12
Write 812 in expanded form.

Answer Key

1. 300 + 10 + 32. 500 + 90 + 53. 800 + 80 + 64. 800 + 15. 400 + 40 + 56. 800 + 70 + 87. 600 + 70 + 38. 400 + 40 + 99. 100 + 3010. 700 + 70 + 811. 200 + 40 + 212. 800 + 10 + 2

Frequently Asked Questions

How do I download this number forms - worksheet 3 worksheet?

Click "Download PDF" for a file, or "Print" to use your browser. You can save it as a PDF or print it directly. The answer key will be on a separate page.

How do I find worksheets at different difficulty levels?

Each subtopic has 10 worksheets: Worksheets 1-3 are Easy, 4-7 are Medium, and 8-10 are Hard. Start with Easy worksheets to build confidence, then progress to harder ones.

What skills does this place value worksheet cover?

This worksheet focuses on place value, number sense. It is designed for 3rd Grade students and provides structured practice through varied problem types with a worked example to guide students before they begin.

Can I use this worksheet in my classroom?

Yes. All worksheets on K12Worksheets are free for classroom use. You can print copies for your entire class. With 10 worksheets per subtopic at three difficulty levels, you have plenty of options for differentiated instruction and individualized practice.

How many problems are on this worksheet?

This worksheet contains 12 problems. It typically takes 10-15 minutes to complete. An answer key with all solutions is included so parents and teachers can check work quickly.