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.

## Applying Addition and Subtraction

Once the unknowns have been identified and listed, the student can then begin to apply addition and subtraction to eliminate the parts of the problem that don’t matter. This involves using the numbers and symbols given in the problem to work out the answer. By using addition and subtraction, the student can remove the parts of the problem that don’t matter and find the answer they need.

## Checking the Answer

Once the student has used addition and subtraction to eliminate the parts of the problem that don’t matter, they can then check their answer. This can be done by re-examining the problem and ensuring that the answer they have found is correct. If the answer is correct, the student can then move on to the next problem. If it is not correct, they can then go back and review the problem, checking their calculation and making any necessary changes.

Eliminating using addition and subtraction can help students to practice and refine their core math skills and understandings. By understanding the problem, identifying and listing the unknowns, applying addition and subtraction, and checking their answer, students can use this activity to improve their understanding of the concept of elimination and to become more confident in their ability to solve more complex math tasks.