# 6-3 Skills Practice Elimination Using Addition and Subtraction

Elimination is a great way to practice and refine core math skills and understandings. By using addition and subtraction, students can learn to analyse and solve problems in a systematic way, enabling them to become more confident in their ability to tackle more complex math tasks. This 6-3 skills practice elimination using addition and subtraction activity will help to improve a student’s understanding of the concept of elimination and encourage them to use the skills they have learnt to solve a number of problems.

## Analyzing the Problem

The first step in solving a problem is to understand exactly what it is asking. In this case, students need to analyze the terms ‘elimination’ and ‘addition and subtraction’. ‘Elimination’ means that they need to find the solution to the problem by removing the parts of the problem that don’t matter and the ‘addition and subtraction’ means that they should use addition and subtraction to find the answer. Once the student has identified the purpose of the activity, they can then begin to work through the problem.

## Identifying and Listing the Unknowns

The next step is to identify the unknowns in the problem. This can be done by listing out the known information such as the numbers and symbols used in the problem and the unknowns such as the answer. This will help the student to clearly see what information they need to solve the problem. Once the unknowns have been identified, the student can then start to use addition and subtraction to eliminate the parts of the problem that don’t matter.