How Do You Use Front-End Estimation to Estimate a Sum of Several Decimals?

How Do You Use Front-End Estimation to Estimate a Sum of Several Decimals?

Note:

Front-end estimation can be a great way to approximate a sum. In this tutorial, you'll see how to use front-end estimation to approximate the cost of school supplies!

Keywords:

problem

decimal

sum

cluster

front-end

estimate

Background Tutorials

Use decimal notation for fractions with denominators 10 or 100.

Have you ever looked at the price of something? It's usually given as a decimal! Decimals are a very helpful part of math and can be found in may places in the real world. Watch this tutorial to learn all about decimals!

Use place value understanding to round decimals to any place.

Sometimes, decimals are so long that you need a way to estimate the value of the decimal. Other times, you may only need a certain amount of exactness to get your answer. This is where rounding decimals to a chosen place can be very helpful! Watch this tutorial to learn how to round a decimal to a chosen place.

Further Exploration

Add, subtract, multiply, and divide decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.

If you want to find the approximate sum of decimals, you can round those numbers first! This tutorial shows you how to round decimals and see what numbers they're close to in order to make adding easier.