Common Core Math · Grade 2

2.MD.B.5 Solve word problems involving lengths

Use addition and subtraction within 100 to solve word problems involving lengths that are given in the same units, e.g., by using drawings (such as drawings of rulers) and equations with a symbol for the unknown number to represent the problem.

Why water teaches this standard well

Word problems ask how many total feet of pipe are needed once two sections of garden irrigation hose are joined, or how much longer one hose is than another. Drawing a labeled ruler alongside the pipe sections keeps the addition grounded in a real plumbing task.

Materials tagged with this code are written to the full standard , and each carries a written note explaining the alignment. See how we review materials.

11 materials aligned to 2.MD.B.5

Lesson plans

Grade 2 Lesson plan

Bean Rows at the Fennhurst School Garden: A Watering Test

Grade 2 students plan a one-variable test of whether bean seedlings need water, measure heights with a centimeter ruler, and compare a watered row with a dry row.

Science 2 sessions, ~60 min total Answer key

Worksheets

Math problem sets

Classroom activities

Grade 2 Classroom activity

Wheelhouse Street's Straw Pipeline Build Challenge

A 40-minute grade 2 team challenge in which groups estimate, join, and measure straw pipelines to carry water 30 inches from a model tank to a house cup.

Engineering & Design 40 min Answer key