Practicing subtraction using a thermometer for a number line makes math fun! In this lesson, your students will get more comfortable with subtracting two digit numbers.

In this lesson, the class will review what it means to make an inference. After you model how to make an inference in a painting using your schema, your students will work in groups to analyze additional paintings to make more inferences.

Guide students to use base ten blocks to solve two-digit by one-digit addition problems with regrouping. This lesson can be used independently or paired with the lesson Adding it All Up.