Introduction

Adding Decimals

Adding decimals are very simple if you know how to add stranded algorithms. But the only complicated part of adding decimals are placing it into the correct place value. Pretend you were given the question below, I will give you step of how to solve the equation.

Subtracting Decimals

Subtracting with decimals are very simple if you know how to subtract and place a decimal. Now let me show you the steps!

Line up your decimals, then you may need 0's in the end of the factors! 0.01-0.002

0.010

-0.002

Now you subtract normally. 0.0110

-0.002

0.008

Finally our last step is to place your decimal. Now you place your decimal by counting how many digits are before your decimal and that is where you place it (going by the right to left)! That is your difference(answer)! Remember when subtract you count to the right to left and when adding decimals left to right!

Multiplying Decimals

Multiplying decimal are very simple. The first thing you do is multiply normally ignoring the decimal. Then you can insert your decimal by just counting how many factors are behind the factors and then you just add that to your product! Here are a few examples below. But when you are multiplying with a factor always remember to line up the decimals up first!

**Slandered Algorithm**

Decimals

By, Sara.A

Decimals

By, Sara.A

Dividing Decimals

56.256+67.37=___F__

ADD them up as if it dose not have a decimal, but you must order the place values first by the decimals(if you do not place the #'s lined up correctly than your sum will be wrong)!

1 1

56.256

+_ 67.37__

123.626 Now all you have to do is plug in the decimal with the factors! Now you move the decimal right below the other decimal. Our sum is in total 123.626!

52.862(4)=211448

Now you have to count how many factors are decimals before the decimal and that is how many you add to your product!

52.862(4)=211.448

PRODUCT

Now you have just learned how to Multiply Decimals!

Dividing decimals are not that hard. First you do long division. Then you insert your decimal. This is the simplest way! But when you are dividing with a decimal and your dividend is 10, 100, 1000etc. there is a trick to it look below to find the trick!

The End

Questions or Comments

By, Sara

56.3/1,000=M

.0563 This is our product you are probably wondering how I did it with out work showen as a standerd algorithm. I am going to let you try to figure it out THEN I will show you how I got this quotient and give you a problem.

56.3/100= .563

56.3/10= 5.63

Has an anyone found the pattern or the trick?

The trick is as how many zero's are in your dividend is how much you count before the decimal from your divisor and count until you hit the #'s of zeros you have and place the decimal and that is the trick (if there was a factor already before the decimal then include that factor).

The Trick

Go back to the last given slide shown and point so understand trick.

Decimals are everywhere we go! In the mall (the price tags of the piece clothing), splitting something, also even in the grocery store, money, and finally a-raging thing into groups! So it's a very important part of our daily life. Even when you are paying for a air plan ticket for vacation or finding the mass of something or speed and even buying a new car! Some thing you can do with decimals are multiplying, adding, subtracting, and dividing the decimals! The next presentation will show you how to deal with decimals.

Quiz

5.22+.11=L (Teacher)

55.62/100=F (Class)

8(2.5)=S (Teacher)

35-2.5=I (Class)

(Photos presented by Prezi)

Biography

Works Cited

ADD & SUB DECIMALS SONG BY HEATH. N.p., n.d. Web. 11 Feb. 2014. <

5.33

.5562

20

32.5