Wednesday, October 9, 2013

Subtraction Strategies

Classroom Freebies Manic Monday

For the last several weeks, my class has been solving addition problems using a variety of methods, including mental math. I developed an addition graphic organizer which we use to record the strategies shared by my kiddos. At the beginning of the year, many students described solving 345 + 30 by adding the “three to four.” Now, my little mathematicians tell me, “I know thirty plus forty is seventy or I know three tens plus four tens is seven tens.” We are now working on both addition and subtraction strategies. I created a subtraction graphic organizer for my students to keep in their math journals as a reference. My kiddos like completing the graphic organizer with a partner. I put the graphic organizers in clear report covers so my students may write on them with fine tip dry erase makers. Click here to download your FREE addition and subtraction graphic organizers!


  1. What a great visual for your little mathematicians, Brooke! Thanks for sharing at Manic Monday.


  2. Hi Brooke,

    I just finished two weeks of teaching my students (preservice teachers) about "alternative" algorithms for both addition and subtraction. I'm going to use your graphic organizer to help them review.

    Thanks so much for sharing these.
    Bookish Ways in Math and Science