Dive deep into word problems with this lesson that teaches students to sketch base-ten blocks to add multiples of 10 and two-digit numbers. Use alone or with the lesson plan Let's Build It! Two-Digit Addition.

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

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

Roll some dice to introduce the early concepts of associative and commutative properties in addition by composing and decomposing 10. Worksheets and a quiz are included!