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Thursday, October 24, 2013

"Decimal Place Value"

Post 2 comments on what you learned from these videos. Do the coinciding exercises on Khan Academy for an extra prize.

17 comments:

Robyn Sarah said...

Instead of saying 3 tenths and 4 hundredths, just say 34 hundredths.
I liked how he laid out the problem in a lot of detail. You might not do that when your actually working a problem, but it might come in handy to know the inner workings of a problem.
Robyn

Leanne Livingston said...

If you are having trouble with a problem in math and you cant find the answer, then write out the formula to the problem, and figure it out that way. You can use exponents to express place values.

Ellen said...

Ruby

When doing problems on "Decimal Place Value" it's always good to write out the steps. This way you don't get mixed up with the numbers.
-----------------------------------------------------------------------------
"Decimal Place Value" example:
7.36 can be said two different ways.
Seven and thirty-six hundredths
Seven point three six

Pam Frost said...

There is more then one way to write out decimal numbers in word problems and still be saying the same thing.
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When you're writing out a number in words you can use exponents to tell the place values.
Beth

Michael Keen said...

Comment 1: If you remember your little short cuts and use them in the system of breaking down the numbers into their place value it will make a lot easier.

Comment 2: There are some examples to making this easier like 5 tenths and 9 hundredths can just make 59 hundredths.

Clark Caputo said...

The decimal point in words is "and", and there are two ways to say the digits after the decimal ex. one tenth and five hundredths or fifteen hundredths.

Anna said...

When writing out a number in word form, instead of writing out the word "decimal" you exchange the decimal for an and.

Davis Caputo said...

There are different ways to write out decimal numbers.

There are also different way to find out what the place value of the number is.

Anna said...

There is more then one way to write a word problem.

Juanita Williams said...

It is interesting how he uses exponents to simplify the numbers.

Timothy Ketron said...

Don't think your system of finding the answer is better then the teachers, remember once you have learned all the systems, then you can start using your own

Timothy Ketron said...

When saying a number with a decimal you say and

Juanita Williams said...

In IXL, the way they teach decimals is to say that numbers after the decimal point are ordinal numbers (they show that they are in an order by ending in th, rd, etc.) That helps me remember which place those numbers are in because you can remember that each number after the decimal is a part of of something, i.e one tenth, one hundreth, etc.

Tim Michaelis said...

Decimals bring order to numbers and make it easier for you.

Tim Michaelis said...

You have to watch that you don't get confused with hundreds and hundredth. If the number has a ends in a th that means it is smaller than a whole number.

Rose O'Connor said...

At the end of the problem you can simplify the spots behind the decimal witch can make it easier for you neighbor to understand.

Exponents also make it simpler you can use them as show in the videos.

Amy said...

When you are writing your answer in word form it is easier to understand if you add all the decimal numbers together. You don't want to get confused with your tens, tenths, hundreds, and hundredths.

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