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How to Solve Math Problems

Last Updated: October 13, 2024 Fact Checked

This article was co-authored by Daron Cam . Daron Cam is an Academic Tutor and the Founder of Bay Area Tutors, Inc., a San Francisco Bay Area-based tutoring service that provides tutoring in mathematics, science, and overall academic confidence building. Daron has over eight years of teaching math in classrooms and over nine years of one-on-one tutoring experience. He teaches all levels of math including calculus, pre-algebra, algebra I, geometry, and SAT/ACT math prep. Daron holds a BA from the University of California, Berkeley and a math teaching credential from St. Mary's College. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 599,118 times.

Although math problems may be solved in different ways, there is a general method of visualizing, approaching and solving math problems that may help you to solve even the most difficult problem. Using these strategies can also help you to improve your math skills overall. Keep reading to learn about some of these math problem solving strategies.

Understanding the Problem

• Draw a Venn diagram. A Venn diagram shows the relationships among the numbers in your problem. Venn diagrams can be especially helpful with word problems.
• Draw a graph or chart.
• Arrange the components of the problem on a line.
• Draw simple shapes to represent more complex features of the problem.

Developing a Plan

Solving the Problem

Joseph Meyer

When doing practice problems, promptly check to see if your answers are correct. Use worksheets that provide answer keys for instant feedback. Discuss answers with a classmate or find explanations online. Immediate feedback will help you correct your mistakes, avoid bad habits, and advance your learning more quickly.

Expert Q&A

• Seek help from your teacher or a math tutor if you get stuck or if you have tried multiple strategies without success. Your teacher or a math tutor may be able to easily identify what is wrong and help you to understand how to correct it. Thanks Helpful 0 Not Helpful 0
• Keep practicing sums and diagrams. Go through the concept your class notes regularly. Write down your understanding of the methods and utilize it. Thanks Helpful 0 Not Helpful 0

You Might Also Like

• ↑ Daron Cam. Math Tutor. Expert Interview. 29 May 2020.
• ↑ http://www.interventioncentral.org/academic-interventions/math/math-problem-solving-combining-cognitive-metacognitive-strategies
• ↑ http://tutorial.math.lamar.edu/Extras/StudyMath/ProblemSolving.aspx

About This Article

To solve a math problem, try rewriting the problem in your own words so it's easier to solve. You can also make a drawing of the problem to help you figure out what it's asking you to do. If you're still completely stuck, try solving a different problem that's similar but easier and then use the same steps to solve the harder problem. Even if you can't figure out how to solve it, try to make an educated guess instead of leaving the question blank. To learn how to come up with a solid plan to use to help you solve a math problem, scroll down! Did this summary help you? Yes No

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20 Effective Math Strategies To Approach Problem-Solving 

Katie Keeton

Math strategies for problem-solving help students use a range of approaches to solve many different types of problems. It involves identifying the problem and carrying out a plan of action to find the answer to mathematical problems.  

Problem-solving skills are essential to math in the general classroom and real-life. They require logical reasoning and critical thinking skills. Students must be equipped with strategies to help them find solutions to problems.

This article explores mathematical problem solving strategies, logical reasoning and critical thinking skills to help learners with solving math word problems independently in real-life situations. 

What are problem-solving strategies?

Problem-solving strategies in math are methods students can use to figure out solutions to math problems. Some problem-solving strategies: 

• Draw a model
• Use different approaches
• Check the inverse to make sure the answer is correct

Students need to have a toolkit of math problem-solving strategies at their disposal to provide different ways to approach math problems. This makes it easier to find solutions and understand math better. 

Strategies can help guide students to the solution when it is difficult ot know when to start.

The ultimate guide to problem solving techniques

Download these ready-to-go problem solving techniques that every student should know. Includes printable tasks for students including challenges, short explanations for teachers with questioning prompts.

20 Math Strategies For Problem-Solving

Different problem-solving math strategies are required for different parts of the problem. It is unlikely that students will use the same strategy to understand and solve the problem. 

Here are 20 strategies to help students develop their problem-solving skills. 

Strategies to understand the problem

Strategies that help students understand the problem before solving it helps ensure they understand: 

• The context
• What the key information is
• How to form a plan to solve it

Following these steps leads students to the correct solution and makes the math word problem easier .

Here are five strategies to help students understand the content of the problem and identify key information. 

1. Read the problem aloud

Read a word problem aloud to help understand it. Hearing the words engages auditory processing. This can make it easier to process and comprehend the context of the situation.

2. Highlight keywords 

When keywords are highlighted in a word problem, it helps the student focus on the essential information needed to solve it. Some important keywords help determine which operation is needed.  For example, if the word problem asks how many are left, the problem likely requires subtraction.  Ensure students highlight the keywords carefully and do not highlight every number or keyword. There is likely irrelevant information in the word problem.

3. Summarize the information

Read the problem aloud, highlight the key information and then summarize the information. Students can do this in their heads or write down a quick summary.  Summaries should include only the important information and be in simple terms that help contextualize the problem.

4. Determine the unknown

A common problem that students have when solving a word problem is misunderstanding what they are solving. Determine what the unknown information is before finding the answer.  Often, a word problem contains a question where you can find the unknown information you need to solve. For example, in the question ‘How many apples are left?’ students need to find the number of apples left over.

5. Make a plan

Once students understand the context of the word problem, have dentified the important information and determined the unknown, they can make a plan to solve it.  The plan will depend on the type of problem. Some problems involve more than one step to solve them as some require more than one answer.  Encourage students to make a list of each step they need to take to solve the problem before getting started.

Strategies for solving the problem 

1. draw a model or diagram.

Students may find it useful to draw a model, picture, diagram, or other visual aid to help with the problem solving process.  It can help to visualize the problem to understand the relationships between the numbers in the problem. In turn, this helps students see the solution.

Similarly, you could draw a model to represent the objects in the problem:

2. Act it out

This particular strategy is applicable at any grade level but is especially helpful in math investigation in elementary school . It involves a physical demonstration or students acting out the problem using movements, concrete resources and math manipulatives .  When students act out a problem, they can visualize and contectualize the word problem in another way and secure an understanding of the math concepts.  The examples below show how 1st-grade students could “act out” an addition and subtraction problem:

3. Work backwards

Working backwards is a popular problem-solving strategy. It involves starting with a possible solution and deciding what steps to take to arrive at that solution.  This strategy can be particularly helpful when students solve math word problems involving multiple steps. They can start at the end and think carefully about each step taken as opposed to jumping to the end of the problem and missing steps in between.

For example,

To solve this problem working backwards, start with the final condition, which is Sam’s grandmother’s age (71) and work backwards to find Sam’s age. Subtract 20 from the grandmother’s age, which is 71.  Then, divide the result by 3 to get Sam’s age. 71 – 20 = 51 51 ÷ 3 = 17 Sam is 17 years old.

4. Write a number sentence

When faced with a word problem, encourage students to write a number sentence based on the information. This helps translate the information in the word problem into a math equation or expression, which is more easily solved.  It is important to fully understand the context of the word problem and what students need to solve before writing an equation to represent it.

5. Use a formula

Specific formulas help solve many math problems. For example, if a problem asks students to find the area of a rug, they would use the area formula (area = length × width) to solve.   Make sure students know the important mathematical formulas they will need in tests and real-life. It can help to display these around the classroom or, for those who need more support, on students’ desks.

Strategies for checking the solution 

Once the problem is solved using an appropriate strategy, it is equally important to check the solution to ensure it is correct and makes sense. 

There are many strategies to check the solution. The strategy for a specific problem is dependent on the problem type and math content involved.

Here are five strategies to help students check their solutions. 

1. Use the Inverse Operation

For simpler problems, a quick and easy problem solving strategy is to use the inverse operation. For example, if the operation to solve a word problem is 56 ÷ 8 = 7 students can check the answer is correct by multiplying 8 × 7. As good practice, encourage students to use the inverse operation routinely to check their work. 

2. Estimate to check for reasonableness

Once students reach an answer, they can use estimation or rounding to see if the answer is reasonable.  Round each number in the equation to a number that’s close and easy to work with, usually a multiple of ten.  For example, if the question was 216 ÷ 18 and the quotient was 12, students might round 216 to 200 and round 18 to 20. Then use mental math to solve 200 ÷ 20, which is 10.  When the estimate is clear the two numbers are close. This means your answer is reasonable. 

3. Plug-In Method

This method is particularly useful for algebraic equations. Specifically when working with variables.  To use the plug-in method, students solve the problem as asked and arrive at an answer. They can then plug the answer into the original equation to see if it works. If it does, the answer is correct.

If students use the equation 20m+80=300 to solve this problem and find that m = 11, they can plug that value back into the equation to see if it is correct. 20m + 80 = 300 20 (11) + 80 = 300 220 + 80 = 300 300 = 300 ✓

4. Peer Review

Peer review is a great tool to use at any grade level as it promotes critical thinking and collaboration between students. The reviewers can look at the problem from a different view as they check to see if the problem was solved correctly.   Problem solvers receive immediate feedback and the opportunity to discuss their thinking with their peers. This strategy is effective with mixed-ability partners or similar-ability partners. In mixed-ability groups, the partner with stronger skills provides guidance and support to the partner with weaker skills, while reinforcing their own understanding of the content and communication skills.  If partners have comparable ability levels and problem-solving skills, they may find that they approach problems differently or have unique insights to offer each other about the problem-solving process.

5. Use a Calculator

A calculator can be introduced at any grade level but may be best for older students who already have a foundational understanding of basic math operations. Provide students with a calculator to allow them to check their solutions independently, accurately, and quickly. Since calculators are so readily available on smartphones and tablets, they allow students to develop practical skills that apply to real-world situations.  

Step-by-step problem-solving processes for your classroom

In his book, How to Solve It , published in 1945, mathematician George Polya introduced a 4-step process to solve problems. 

Polya’s 4 steps include:

• Understand the problem
• Devise a plan
• Carry out the plan

Today, in the style of George Polya, many problem-solving strategies use various acronyms and steps to help students recall. 

Many teachers create posters and anchor charts of their chosen process to display in their classrooms. They can be implemented in any elementary, middle school or high school classroom. 

Here are 5 problem-solving strategies to introduce to students and use in the classroom.

How Third Space Learning improves problem-solving 

Resources .

Third Space Learning offers a free resource library is filled with hundreds of high-quality resources. A team of experienced math experts carefully created each resource to develop students mental arithmetic, problem solving and critical thinking. 

Explore the range of problem solving resources for 2nd to 8th grade students. 

One-on-one tutoring 

Third Space Learning offers one-on-one math tutoring to help students improve their math skills. Highly qualified tutors deliver high-quality lessons aligned to state standards. 

Former teachers and math experts write all of Third Space Learning’s tutoring lessons. Expertly designed lessons follow a “my turn, follow me, your turn” pedagogy to help students move from guided instruction and problem-solving to independent practice. 

Throughout each lesson, tutors ask higher-level thinking questions to promote critical thinking and ensure students are developing a deep understanding of the content and problem-solving skills.

Problem-solving

Educators can use many different strategies to teach problem-solving and help students develop and carry out a plan when solving math problems. Incorporate these math strategies into any math program and use them with a variety of math concepts, from whole numbers and fractions to algebra. 

Teaching students how to choose and implement problem-solving strategies helps them develop mathematical reasoning skills and critical thinking they can apply to real-life problem-solving.

READ MORE :

• 8 Common Core math examples
• Tier 3 Interventions: A School Leaders Guide
• Tier 2 Interventions: A School Leaders Guide
• Tier 1 Interventions: A School Leaders Guide

There are many different strategies for problem-solving; Here are 5 problem-solving strategies: • draw a model  • act it out  • work backwards  • write a number sentence • use a formula

Here are 10 strategies for problem-solving: • Read the problem aloud • Highlight keywords • Summarize the information • Determine the unknown • Make a plan • Draw a model  • Act it out  • Work backwards  • Write a number sentence • Use a formula

1. Understand the problem 2. Devise a plan 3. Carry out the plan 4. Look back

Some strategies you can use to solve challenging math problems are: breaking the problem into smaller parts, using diagrams or models, applying logical reasoning, and trying different approaches.

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Breaking Down Complex Math Problems: A Step-by-Step Guide

Understanding complex math problems is essential for students, teachers, and individuals keen on applying math in daily life or at work. Here’s a step-by-step guide to help you dissect and tackle these seemingly daunting equations or problems.

Step 1: Understand the Problem

Before anything else, understand what the problem is asking. To do this, you’ll need to:

• Read the problem carefully, making sure to consider all the provided information.
• Identify what you need to find (this will often be clearly stated in the problem).
• Pinpoint any vocabulary or concepts that you may not understand and look them up.

Let’s take the problem, “If the sum of two consecutive numbers is 27, what are the numbers?” The goal here is to identify the two numbers. The term ‘consecutive’ is vital; it tells us that if one number is n, the next is n+1.

Step 2: Devise a Plan

Creating a plan involves deciding the methods or formulas to use to solve the problem. It may also include deciding the order in which to perform certain operations or steps.

For our problem, we know that consecutive numbers can be represented as n and n+1. The problem tells us their sum is 27. So, we set up the equation: n + (n + 1) = 27.

Step 3: Carry Out the Plan

At this point, we execute the plan we devised in step 2. Here, we solve the equation:

• Combine like terms: 2n + 1 = 27
• Subtract 1 from both sides: 2n = 26
• Divide both sides by 2: n = 13

After we found n, we also need to find n+1, which equals 14. So, the two consecutive numbers are 13 and 14.

Step 4: Check Your Work

Checking the work ensures that the answer is reasonable and fits the criteria of the problem. Here, we check by substituting the numbers back into the original problem. Is 13 + 14 equal to 27? Yes, so we know our solution is correct.

Step 5: Reflect on Your Work

Reflection involves thinking about how you approached the problem, what strategies worked, what didn’t, and why. Reflecting helps improve your problem-solving skills for future problems.

Now let’s try a more complex problem:

“In a basketball game, if Player A scored twice as many points as Player B, and together they scored 54 points, how many points did each player score?”

We are looking for the points each player scored. We know that Player A scored twice as many points as Player B and that they scored 54 points together.

Let’s represent Player B’s score as ‘x’. Given that Player A scored twice as many points, we can represent his score as ‘2x’. Their combined score is 54 points. So, we can create the equation: x + 2x = 54.

Solve the equation:

Combine like terms: 3x = 54

Divide both sides by 3: x = 18

Player B scored 18 points. Since Player A scored twice as many points, he scored 36 points.

Substitute the numbers back into the original problem. Does 18 (Player B’s points) + 36 (Player A’s points) equal 54? Yes, so our solution is correct.

Just as with the simpler problem, reflect on your work. Understanding your own process can make tackling similar problems easier in the future.

In conclusion, breaking down complex math problems doesn’t have to be intimidating. By taking the time to understand the problem, devise a plan, carry out that plan, and then check and reflect on your work, you can effectively solve complex math problems. And remember, practice makes perfect! The more problems you solve, the better you will become.

Now, let’s take a look at a complex word problem that involves quadratic equations – a critical concept in algebra.

“A rectangle has a length that is 2 more than 3 times the width. The area of the rectangle is 75 square units. What are the dimensions of the rectangle?”

Our task is to find the width and length of the rectangle. We know from the problem that:

• The length is 2 more than 3 times the width. If we represent the width as ‘w’, then the length is ‘3w + 2’.
• The area of the rectangle is 75. The formula for the area of a rectangle is ‘width * length’.

We have two equations and two unknowns, which is a good start. Let’s set up our equations:

• L = 3w + 2 (from the first piece of information)
• L * w = 75 (from the second piece of information)

We can substitute the first equation into the second one because they both equal ‘L’.

This results in a quadratic equation:

(3w + 2) * w = 75 3w^2 + 2w = 75 3w^2 + 2w - 75 = 0

The next step is to solve this quadratic equation. Since it’s a quadratic equation, we can use the quadratic formula:

w = [-b ± sqrt(b^2 - 4ac)] / (2a)

In our equation, a = 3, b = 2, and c = -75. Plug those values into the formula:

w = [-2 ± sqrt((2)^2 - 4*3*(-75))] / (2*3) w = [-2 ± sqrt(4 + 900)] / 6 w = [-2 ± sqrt(904)] / 6

The square root of 904 is approximately 30.07. So the two possible values for w are:

w = [-2 + 30.07] / 6 = 4.68 (approximately) w = [-2 - 30.07] / 6 = -5.35 (approximately)

Since we can’t have a negative width, we discard the second solution. So the width is approximately 4.68 units.

Plug the value of w into the first equation to find the length:

L = 3*4.68 + 2 = 16.04 (approximately)

We should check our answers. The area of the rectangle is width times length, which should be 75:

4.68 * 16.04 = 75.1 (approximately)

The slight difference is due to the rounding. So, our solution is correct.

Consider how we approached this problem. We took the given information, translated it into mathematical equations, and then solved those equations. Recognizing that the problem was a quadratic equation allowed us to use the quadratic formula, which is a common method for solving such problems.

As you can see, with the right approach, even complex math problems can be broken down into manageable steps. This process requires practice, but over time, it will become second nature.

If you are a Class 7 CBSE student looking to practice class 7 math online for better marks, you can visit LearnTheta. It’s an online platform designed to aid you in achieving effective preparation.

For all your quant-related needs, visit LearnTheta

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