2.NBT.2: Counting Within 1000
I can count within 1000; skip-count by 5s, 10s, and 100s.
What Your Child Needs to Know
This standard teaches your child to count and skip-count with larger numbers up to 1000. Second graders learn to count by 1s, 5s, 10s, and 100s, which builds their number sense and prepares them for understanding place value patterns. Skip-counting is a foundational skill that helps with multiplication, division, and working with money. Your child will learn to see patterns in numbers and use these patterns to count more efficiently.
Real World Practice
Visual models and hands-on activitiesVisual Models
Number Lines: Use number lines to show skip-counting patterns. Mark every 5th, 10th, or 100th number to visualize the patterns.
Hundred Charts: Use multiple hundred charts to practice counting beyond 100 and identify skip-counting patterns.
Base-10 Blocks: Use hundreds blocks, ten-rods, and unit cubes to represent larger numbers and practice counting by different amounts.
Grouping Objects: Group objects in sets of 5, 10, or 100 to practice skip-counting with concrete materials.
Everyday Activities
Money Counting: Use nickels (5¢), dimes (10¢), and dollar bills ($1.00) to practice skip-counting by 5s, 10s, and 100s.
Calendar Counting: Count by 5s and 10s using calendar dates, or count days by 100s to see how many days are in different time periods.
Exercise Counting: Count jumping jacks, steps, or other exercises by 5s or 10s to make large numbers more manageable.
Collection Counting: Count large collections of items (like stickers or coins) by grouping them and skip-counting.
Quick Checks
Strategies and quick activitiesStrategies When Your Child Struggles
Start with Smaller Numbers: Practice skip-counting by 5s and 10s to 100 before extending to 1000.
Use Physical Objects: Group real objects in sets of 5, 10, or 100 to make skip-counting concrete and visual.
Practice Patterns: Help your child notice and verbalize the patterns in skip-counting (like how 10s always end in 0).
Connect to Known Facts: Relate skip-counting to things your child already knows, like counting by 10s is like adding 10 each time.
5-Minute Practice Activities
Skip-Count Race: Time your child skip-counting by 5s, 10s, or 100s to a target number. Try to beat their previous time.
Fill in the Blanks: Write a skip-counting sequence with missing numbers and have your child fill them in.
Counting Backwards: Practice skip-counting backwards from larger numbers (like 100, 90, 80, 70...).
Number Hunt: Call out a number and have your child find it by skip-counting from a starting point.
Check Progress
Track improvementDevelopmental Milestones
Beginning: Can count by 1s to 100 and skip-count by 10s to 100 with some support.
Developing: Skip-counts by 5s, 10s, and 100s to 500 and can count by 1s to 200.
Proficient: Fluently skip-counts by 5s, 10s, and 100s to 1000 and counts by 1s to 1000.
Advanced: Can start skip-counting from any number and identify patterns in skip-counting sequences.
What to Look For
Pattern Recognition: Your child notices and can explain patterns in skip-counting sequences.
Fluency: Can skip-count quickly and accurately without needing to count by 1s first.
Flexibility: Can start skip-counting from numbers other than the typical starting points (like 5, 10, 100).
Application: Uses skip-counting to solve real-world problems, like counting money or large collections.
Differentiation
Support for all learning levelsBelow Grade Level
Focus on skip-counting by 10s to 100 and counting by 1s to 200. Use visual supports and concrete objects to reinforce patterns.
Download Practice WorksheetAt Grade Level
Practice skip-counting by 5s, 10s, and 100s to 1000. Work on counting by 1s to 1000 and identifying number patterns.
Download Grade Level WorksheetAbove Grade Level
Extend skip-counting beyond 1000, practice starting from different numbers, and solve complex counting problems.
Download Challenge Worksheet