---
title: 'Video: What second graders learn about adding and subtracting numbers'
description: Find out what addition and subtraction skills most second graders learn, and how they move from single digits to double digits.
slug: video-what-second-graders-learn-about-adding-and-subtracting-numbers-less-than-100
author: The Understood Team
published: '2019-10-16T11:48:02.740Z'
thumbnail: https://cdn-images.understood.org/p0qf7j048i0q/BF10465765C74E5E8A4F7B984D9B803E/2303bd23c04f25a964c52246fc8aad8b/VideoDoesYour2ndGraderAddAndSubtractNumbersUpTo100_.jpg
source_url: https://www.understood.org/en/articles/video-what-second-graders-learn-about-adding-and-subtracting-numbers-less-than-100
lang: en
---

# Video: What second graders learn about adding and subtracting numbers

Second graders typically know how to add and subtract single-digit numbers. So they spend this year honing their skills and working with bigger numbers — up to 100. Watch this video from Understood founding partner [GreatSchools](https://www.greatschools.org/) to find out how kids are building these math skills in second grade.

[![Video](https://cdn-images.understood.org/p0qf7j048i0q/BF10465765C74E5E8A4F7B984D9B803E/2303bd23c04f25a964c52246fc8aad8b/VideoDoesYour2ndGraderAddAndSubtractNumbersUpTo100_.jpg)](https://www.youtube.com/embed/5hyaFDGb54M)

---

## Explore related topics and articles

- [Video: What first graders learn about adding and subtracting numbers smaller than 10](https://www.understood.org/en/articles/video-what-first-graders-learn-about-adding-and-subtracting-numbers-smaller-than-10) - It may be hard to remember a time when you couldnt add and subtract single-digit numbers. But its a skill, and kids usually learn it in first grade. Watch this video from founding partner GreatSchools to learn how to tell if your child is on track.
- [Video: How second graders solve math word problems](https://www.understood.org/en/articles/video-how-second-graders-solve-word-problems) - Kids in second grade work on adding and subtracting numbers that are smaller than 100. At the same time, they practice using these skills on word problems. This video from Understood founding partner GreatSchools shows how kids this age typically approach word problems.
- [Video: What first graders learn about two-digit numbers](https://www.understood.org/en/articles/video-what-first-graders-learn-about-two-digit-numbers) - Kids in first grade typically learn about two-digit numbers. They find out why the three in 39 is worth more than the three in 43. Watch this video from founding partner GreatSchools to understand how this is taught and what your child is expected to understand.

---

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