Math Intervention 3–5 Grade

36 Addition and Subtraction Concepts

Rigorous Problem Solving with the Concept of

Joining Sets 1

12 students are playing on the playground at Kayla’s school.

Some students are on the swings. Some students are on the

slide. Some students are jumping rope. Some students are

playing soccer.

Part A

Write 4 different equations that could represent the

12 students playing on the playground.

Part B

Use an equation or table to represent the 12 students on the

playground if twice as many students are on the swings

as are on the slide, and the same number of students are

jumping rope as are playing soccer.

© 2016, Math Intervention: Grades 3–5, Jennifer Taylor-Cox, Routledge