In these worksheets, students will learn to estimate, then solve for the exact answer and determine the error of estimation.

Math is very challenging as a subject and there are tons of mistakes that we make while solving questions. On top of that, there are various terms, definitions, word problems, questions and operations that require carefully looking at the questions and then solving them, one by one. There are a variety of questions we come across every time we are doing math, and today we are going to take a look at something new. Now, do you know what estimation is? Let's find out! To estimate means to find something close to the exact answer. Estimation is a rough idea of what the value is equal to without having a proper idea of the number. Estimation requires operating mentally, and often there is no need to get an exact result, instead only an idea or an estimate is required of the outcome. Just like any other question, estimation too, requires concentration and attention to solve. And there are several mistakes one can make during estimation. Here are a few; Copying the problem incorrectly. Writing the wrong number. Sloppy handwriting. Dropping a negative sign. Unable to follow directions. Working slowly. Unclear concepts.

In these worksheets, your students will learn to estimate by rounding off the values of a given problem and then calculating the answer mentally, without writing the problem down. They will then solve for the exact answer using whatever mathematical operation is required by the question. Finally, they will determine the error of estimation by finding the difference between the estimated result and the exact result. This set of worksheets contains lessons, step-by-step solutions to sample problems, and both simple and more complex problems that students can use for independent practice. When finished with this set of worksheets, students will be able to estimate, then solve for the exact answer and determine the error of estimation. A prior understanding of the concept of rounding is required. These worksheets explain how to estimate, then solve for the exact answer and determine the error of estimation. Sample problems are solved and practice problems are provided.



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Errors In Estimation Worksheets

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Errors in Estimation Lesson

Estimate the result mentally. Then find the exact value and estimate the error. The problem that is presented here is an example of simple multiplication, but it is also asked to estimate the result mentally before finding the exact answer. To find estimated result, we round off the values of the given problem and calculate the result mentally, without using paper and pen.

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Lesson and Practice

Estimate the total number of people from the table. (Round to nearest thousand million) Observing the table we find that the table shows data between people and their favorite color. Finding total number of people on which survey was done. We will round off the value to nearest thousand million and add all the digits.

Worksheet

Students will estimate, then solve for the exact answer and determine the error of estimation. Ten problems are provided.

My Practice

Let's see how good your guesstimation skills in fact are. Ten problems are provided.

Skill Drill

You will estimate an answer and then solve for the exact answer. The final goal is to determine the error of estimation. Eight problems are provided.

Class Warm Up

You will do an extra credit section to determine the error of estimation by looking up the exact current figures compared to the table. Three problems are provided.