Being able to add and subtract within 100 is a fundamental part of math… which is why it is so important to give students plenty of practice to master this skill! Here are some of my favorite teaching strategies for addition and subtraction within 100 in first grade.
How to Teach Strategies for Addition and Subtraction Within 100
Because this concept is really the basis for practically all other math skills your students will come across, plenty of practice in whole class, individual, and small group settings on various strategies for addition and subtraction within 100 are important!
However, this isn’t a skill that will always come easily to students. For example, students may have a solid foundation for adding and subtracting 1-digit numbers but run into trouble when 2-digit numbers get thrown in. Or, another common struggle students have is learning subtraction problems after they learn addition problems. This is why scaffolding and differentiation are important strategies for addition and subtraction within 100 for your lesson plans. Working with students to build upon what they do understand will make it easier for them to grasp more difficult concepts later.
On top of that, strategies for addition and subtraction within 100 is a skill that you will want to continue practicing and reviewing throughout the year, especially as more difficult concepts come along. Giving students the chance to reflect back on their knowledge of addition and subtraction can make learning more difficult concepts much easier.
Strategies for Adding and Subtracting Within 100 in the Classroom
One of the best ways to teach this concept is through manipulatives and fun objects in your classroom. Use supplies like erasers, magnets, number blocks, books, etc. To help students picture this concept. You can even use this opportunity to head outside and get creative with what your students can find to add and subtract and make their own math problems!
Another fun activity could be letting students count themselves. First, you could divide the room in half. Then, ask a simple question such as, “do you like chocolate or vanilla ice cream better?” Students would walk to the side of the room with their choice. Then, you could work as a class to count up how many students are on each side to add or subtract the numbers. While you may only be able to do this activity a few times with addition, it’s a great little warm-up activity to help students remember what they are learning!
Making The Concept Fun
Playing games in the classroom is a huge part of my small group learning. It is so helpful to teach concepts in a fun way! This is one of the most important teaching strategies for addition and subtraction within 100.
For example, a simple set of dice or deck of cards can turn into a great addition problem or subtraction problem learning game for math centers. Students can either roll the dice or flip over numbered cards to get a one or two-digit number (depending on what concept you are working on). Then, another student can do the same. The two students can add or subtract their numbers together to get an answer.
This is also why I include games in each of my daily lesson plans. These games all teach the same concept, but in different ways to mix things up and keep them interesting for students. And sometimes, all a student needs is to look at the concept in a new way for it to finally click!
My adding and subtracting within 100 activities and lessons bundle comes with 11 differentiated lesson plans, games, challenges, practice pages, and questions to help students understand this new concept and try out a variety of strategies. On top of that, the lessons are low-prep and teacher-friendly so you can spend more time focusing on what your students need and less time planning!
You can grab the adding and subtracting within 100 bundle on my Teachers Pay Teachers store for just $11. That’s only $1 per lesson!
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