Quiz Tomorrow!

Tomorrow we have a quiz on adding, subtracting, multiplying and dividing with decimals.  Today in class we reviewed what would be on the quiz and completed some practice problems to help us prepare.  See below for the examples and information.


There are 18 questions on the quiz.

2 adding, 2 subtracting problems.  These are basic.  Just add or subtract after lining up the decimals.

2 multiplying problems.  Again, these are basic.  Ignore the decimals when you multiply then count space after the decimal to determine where to place the decimal

2 estimating word problems.

example 1:

example 2:

2 buying items problems.

example:

1 word problem with numbers written in word form.

example:

2 word problems.  The math is basic, but you need to determine if we should add, subtract, multiply or divide.

example 1:

example 2:

example 3:

1 logic problem.  You will need to determine if a decimal is in the right place, if an answer seems reasonable, what answer should be expected, etc.  I can't give too much information about this one, but if you think about how reasonable an answer should be and feel comfortable doing basic estimation with decimals, you can do this problem.

2 division problems.  Just like tonight's homework.  See examples way below.

2 division word problems.

example:

Tonight's homework is to complete the Division worksheet and study for the quiz.  Since I want to give you as much time as possible on the quiz tomorrow, I am including the answers to tonight's homework just below.  Please correct your work at home if possible so that you can begin right away in class tomorrow!

Number 12 is a bit tricky and somewhat confusing.  Normally when we round things down, like in addition and multiplication, it makes our estimate smaller and therefore less than the actual answer.  But with subtraction and division, when we round down, it doesn't always do the same thing.  In this problem, rounding the divisor down means that each group is going to be a bit bigger, but since we rounded the dividend down by quite a bit, we were actually starting with much less.  By doing the actual math out, as I did below, we can see that this estimate is actually larger than the actual answer.  (By the way, I didn't finish the actual answer, but we can see enough to know that the actual answer is smaller.)  Tomorrow's quiz will not have a question like this, so please don't worry about it.  You should be able to estimate for examples like the ones provided up top.

Good luck studying!

-Miss K  :)

Dividing Decimals

Today we were able to begin dividing decimal values.  Since we already have some practice with this topic, everyone seemed pretty comfortable dividing and solving these problems.

If you need a reminder check out the video below and take a look at the links to online notes.



Cool Math

Math is Fun

Tonight's homework is to complete the HW side of the paper I passed out it class.  I'm pretty sure that almost everyone finished during class!  If you want to keep practicing, please work on the opposite side of the paper and/or do the problems included on the note sheets passed out during class.

Best of luck and have a great weekend!  Remember, we will have a quiz on adding, subtracting, multiplying and dividing decimals on Tuesday!

-Miss K  :)

More Multiplying Madness!

Excellent job multiplying in class today.  Our second shopping trip was a success and I was very pleased with your work.  Since there are so many ways to make mistakes on a big long multiplication problem, I am posting each of the answers from last night's homework below.  Please review them if you had trouble with the assignment!

Tonight's homework is to complete the multiplication sheet (both sides, 17 problems).  I am going to grade this assignment as check +, check or check - based on your performance, so do your best.  Take your time, make sure your answer makes sense and double check your math.  It's too easy to make a silly calculation error, so you need to be super careful!

-Miss K  :)

Mastering Multiplying with those Difficult Decimals!

To begin our lesson today, we watched a short video on multiplying with decimals!  My favorite part of multiplying decimals is step one in which we basically just ignore the decimals!  After we get an answer, all we have to do is count the spaces after the decimals in the problem and make sure that there are the same amount of spaces after the decimal in the answer!

Remember, to determine where the decimal goes in an answer, you COUNT the decimal spaces.  You can also use your skills of estimation to determine which decimal placement makes the most sense.

Tonight's homework is to complete the ten problems on the "Multiplication of Decimals" worksheet.  As a reminder, we also have a quiz next Tuesday on adding, subtracting, multiplying and dividing decimals.

-Miss K  :)

More Adding and Subtracting!

We continued working on adding and subtracting today!  In fact we went on a "shopping trip" in which we purchased and returned various items!  The problem was long and complicated, but 32 of you completed it with perfection and accuracy!  Congratulations on your hard work.

Tonight's homework is to complete the adding and subtracting worksheet with estimating.  Just 14 problems!  Remember that we will have a quiz next Tuesday!

Tomorrow we start multiplying with decimals!  Want to take a look at what we will do?  Watch the video below!



-Miss K  :)

Adding and Subtracting Decimals

The thing that is awesome about adding and subtracting decimals is that there is really only one thing to remember...  LINE UP THE DOT!  When you set up your problem, you need to make sure that the decimals line up so that each place value matches in a column, ones with ones, tenths with tenths, etc.

Read this short tutorial if you need help or play a game from this page to help you practice!

The Rappin' Mathematician can help you to remember to line up the dot (and give it all you've got!)



Tonight's homework is to complete 20 problems on worksheet 3-6.  Of those 20 problems, two must be the word problems at the bottom of the page.  You should have made some progress on this assignment in class!

Don't forget to "plop" the decimal into the answer!  ;)

-Miss K  :)

Graded Class Assignment today!

I hope to have these corrected by Tuesday!  Have a great weekend!  No Homework!

-Miss K  :)

More Estimating!

Classes were crazy short today, so here is some help with the first few problems of the HW!  Remember that you may use your orange sheet if it helps!

Adding and Subtracting:  Estimate by rounding each number to the highest COMMON place value.  Basically round both numbers to the biggest place value that they BOTH have.

ex:  17.92 + 182.034
since both numbers have a digit in the tens place (underlined), we would round to the tens.

20 + 180 = 200

Multiplying:  Estimate by rounding EACH number to its OWN highest place value.  Basically, use as many zeros as possible!

ex:  5.67 x 41.08376
round the first number to the ones place and the second number to the tens place

6 x 40 = 240

Dividing:  Estimate by using compatible numbers.  Round the divisor first and then search for a compatible number for the dividend.

ex:  41.03 / 7.15
round the 7.15 to 7 and then think about multiples of 7.  Since 42 is a multiple of 7 and is reasonably close to 41.03, we round it to 42.

42 / 7 = 6

Tomorrow we will have a short graded class assignment.  You should know the following topics to be ready to do awesome on the graded class assignment:

• Writing decimals in word form and number form.
• example:  thirty and seventy-two tenths = 30.72
• Representing a decimal value on a grid.
• Basic estimating strategies with decimals
• Round decimal values.
• Comparing and ordering decimal values.

That's it!!!

Have a good night!

-Miss K  :)

Estimating with Decimals

After taking yesterday off, we got back into math mode and began estimating decimals today.  Here are the notes and examples from class:

(see examples in your notes)

(see examples in your notes)

I'm not sure what will happen as far as school tomorrow, but please complete your homework, the rounding/estimating side of the worksheet.  Remember that #1 has a typo and should look like this instead:

(rounded to the hundredths place)

We will have a graded class assignment this Friday, so spend some time looking over the topics we have covered in our decimal unit so far.

Have a good, safe, warm night!  I hope to see you tomorrow!

-Miss K  :)

Decimal Place value video

-Miss K  :)

Sandy Donations!

From the Brown School email:

In an effort to support those in need here in Madison and around surrounding states due to the devastation created by Hurricane Sandy,  Robert H. Brown Middle School and Polson Middle School are teaming up to collect needed goods such as:

• Non-perishable food items
• diapers
• formula and baby food
• baby wipes
• batteries
• blankets
• hats
• gloves
• socks
• sweatshirts
• towels
• toiletries and other items

Our goal is to fill two vans and deliver these items to areas of need this weekend.  Additionally, we will be collecting money to support victims of Hurricane Sandy. Money can be delivered to either the Brown Main Office or Polson Main Office. All collected money will be donated to the Madison Food Pantry.

Our fundraising efforts will take place all week at both schools.

Thank you for your support as we look to help others in need.

-Miss K  :)

Comparing and Ordering decimal values!

Welcome back!  I'm glad to hear that pretty much everyone has their power back and seems to be recovering from the storm.  We started working on our school work again today and it seems like everyone really understood the homework.  Tonight you should do two things:

1) If you didn't get your math test signed and/or didn't correct the problems that were wrong, you should get it signed and correct anything that was wrong.  I will collect this on Wednesday, November 7th.

2) You should complete worksheet 3-3 for homework tonight.  I believe that most of you got quite a bit done in class, so this shouldn't be too difficult.

Please remember that there is no school tomorrow due to the election!  Please encourage your parents to vote and ask them about the voting process, why they vote the way they do, and whatever questions you might have about the election.  You can still learn when there is no school!  I can't wait to vote tomorrow!  This is the 4th Presidential Election that I get to participate in!

Today we talked about comparing and ordering decimal values.

Tonight's homework:

You can also play a game to practice this topic by clicking here or on the picture below.  Try each level!

If you are working on your math test and don't know how to solve a problem, please use the information on the blog to help you!!!!  It's there for a reason!!!

-Miss K  :)

I can't wait to see you tomorrow!!!!

It's been a long time since I've seen you and I miss you all!  I hope that everyone is feeling safe and doing well!  I hope that if you lost power, that it has returned!  See you tomorrow morning!

-Miss K  :)