Wednesday, April 27, 2016

When dividing decimals follow these steps.
If the divisor is not a whole number, move decimal point to right to make it a whole number and move decimal point in the dividend the same number of places.
Divide as usual.
Put the decimal point directly above decimal point in the dividend.




Transcript

Let's go ahead and divide several of the problems with dividing decimals.
Problem 1 notice we have a decimal here on the outside.
What we need to do is move it one place to the right and create a whole number.
What you complete on the outside you will need to repeat on the inside.
When we move the decimal place one to the right we get 12 and 3.6 becomes 36
Now we just have 36 divided by 12 which equals 3
Another example we have one decimal on the outside so I will move it to the right and it becomes 26, and what I do on the outside I will repeat on the inside.
We now have 26 and 104. 104 divided by 26 equals 4
Lets move to another division problem that contains decimals.
The next one the outside number is already a whole number so we leave it alone
Just to avoid mistakes lets move the decimal point here
24 will go into 34 two times.
15 times 2 = 30
Bring down the 4 and we have 45
15 goes into 45 3 times, and we are left with 2.3
Again, we have a decimal on the outside so I will move the decimal one to the right.
What I complete on the outside I complete on the inside
You do not need to rewrite, but I have found it helps to eliminate mistakes
I now have 173.6 divided by 124
I will go ahead and write the decimal and when I subtract 173-124 I get 496 and 124 goes into 496 4 times
So the final answer is 1.4
Hope that helps with dividing decimals and MooMooMath uploads a new Math video everyday
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