How to divide by decimals without a calculator

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Last Updated: February 7, Fact Checked. Grace Imson is a math teacher with over 40 years of teaching experience. She has taught math at the elementary, middle, high school, and college levels. 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 , times.

How to divide by decimals without a calculator

Hey, guys! Welcome to this video on dividing decimals! Dividing decimals may not seem like the most useful tool, but it can actually come in handy for several situations in everyday life. Now, you may be wondering when dividing decimals would ever be useful. How many gallons of gas should you ask for? The local store sells large beams of wood that are 28 feet long. At the store, you wonder: how many pieces of wood can you cut out of each beam? Your first step would be to write out the problem as you would any other long division problem. It should look like this:. When solving this problem, it would be significantly easier to work with whole numbers instead of numbers with decimals. The simplest way to accomplish this is by multiplying each number in the expression by As a general rule, every time you multiply a number by 10, you are essentially moving the decimal point over one place to the right. If we multiply. You may be wondering if we need to do something to modify this answer.

Study Guides Flashcards Online Courses. Sort by: Top Voted. Divide decimals by multiplying both numbers by a factor of 10 so the divisor no longer has a decimal value.

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Welcome to Omni's decimal calculator , where we'll learn all about adding, subtracting, multiplying, and dividing decimals, as well as about decimal exponents, square roots of a decimal, and logarithms with decimals. The topic is not too difficult: it all boils down to simple arithmetic, but we'll go through it all nice and slow so that we don't miss a thing. For simplicity, we've split the text below into sections, one for each operation available in our decimal calculator. To select this option in the decimal calculator, choose Addition in the Operation variable field. When adding and subtracting decimals, the most important rule is to keep track of the decimal dot. To be precise, the operation boils down to doing the same thing we do when adding integers, as long as the two numbers have the same number of digits after the decimal dot.

How to divide by decimals without a calculator

Calculators are amazing, but depending on them even for the basics will hamper your math skills. Just like addition, subtraction, and multiplication, you should know how to divide manually, at least for small numbers. We will you through basic steps so that you understand how to divide without the help of a calculator. To get the process right, you must learn the terminology. If all numbers are done, and the remainder is not zero yet, you will have to add a decimal in the quotient and write 0 beside the remainder. Continue with your division until you get 0 or a recurring number.

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Thank you for your feedback. The problem is now long division. If there is a remainder when dividing decimals, add zeroes to the end of the dividend and keep dividing until there is no remainder. But what do you do now? Skip to Content. Search for courses, skills, and videos. So we can multiply it by a Popular Categories. The dividend is the number that's being divided. Yes, you would change them into and 61 so both numbers are changed by two digits to the right. Well we can multiply it by 10 and then another Move the decimal point directly up above the division bar.

October 12, by Anthony Persico. In math, it is important to be able to work with and perform operations on decimals, which are numbers in the base system that include a point that separates the whole number s from the attached fractional parts.

Yes and that is exactly how you should approach these types of problems. Dividing decimals can be made simple by multiplying both numbers by the same amount to eliminate decimals. Reader Success Stories. Move it the same number of places. You should get the original dividend if you've divided the problem correctly. Move the decimal two places to the right, gets you 3, Thank you for your feedback. Well it does not go into 30 so we can move on to To log in and use all the features of Khan Academy, please enable JavaScript in your browser. Or, you could view this, this division problem. Created by Sal Khan. If you want to learn how to check your answers with multiplication, keep reading! Edit this Article.