Boris’s Thimbles

Students represent and solve story problems that involve adding multiples of `10` to multiples of `10` or subtracting multiples of `10` from multiples of `10`.

By Amplify Classroom

1st Grade

Math

Today’s Goals • Add tens to and subtract tens from multiples of `10` within `100`. • Language Goal: Explain and compare strategies for adding and subtracting multiples of `10` within `100`. (Speaking and Listening) Materials Manipulative Kit: connecting cube towers (optional, from Lesson 4); Classroom materials: Representations of Tens chart (from prior lessons)