Use this lesson to review three-digit addition strategies including base-ten drawings, number lines, and the standard algorithm.

Use this lesson to introduce composing and decomposing as part of your students’ addition and subtraction toolkits.

In this lesson, students will have fun creating addition sentences by drawing and counting ladybug dots.

Practice finding unknown numbers in addition equations using fun and silly word problems.

Students sketch base-ten blocks in this lesson that builds both number sense and fluency adding to 20!