Add Within 100

With our Add Within 100 lesson plan, students learn helpful strategies to add both one and two digit numbers within 100.


Our Add Within 100 lesson plan teaches students strategies for adding two numbers less than 100.  During this lesson, students are asked to practice solving problems in which they add one and two digit numbers. Students are also asked to play a game in which they roll a dice and add that to a two digit number for additional practice.

At the end of the lesson, students will be able to add within 100 with two-digit and one- digit numbers including multiples of 10 using a strategy based on place value.

Common Core State Standards: CCSS.Math.Content.1.NBT.C.4

Additional information




1st Grade

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    Elizabeth S.
    US US
    A Straightforward Approach to Addition

    Add Within 100 has a detailed lesson plan with great visual examples that teach basic addition. I especially appreciate the links to other resources and videos to prep for the lesson.

    Desiree J.
    LK LK
    Great material!

    Very helpful for working on maths in our homeschool program for my son with autism. Thanks so much!