Subtraction Algorithm for "Counting Up"

Today we reviewed borrowing in subtraction.

We looked at why we borrow by modeling with base ten blocks.

Then we learned about "counting - up" method of subtraction.

Think about when you get change back from a store.
The clerk counts up.

If the total due is $1.80 and you pay with 2 $1.00 bills.

The clerk should say. $1.90 as she/he places a dime in your hand, 

$2.00 as she/he places a second dime in your hand.

The change back to you is $0.20.

Take this concept and apply it to all subtraction as an alternate way to subtract.

63 - 37 = ?

Start with the lowest number and count up until you reach the biggest number:

37 +3 = 40

40 +20 = 60 

60 +3 = 63

now: add all of your "count ups"

+ 3 +20 +3 = 26

answer: 26

Math is just puzzles waiting to be solved.

Remember there are sometimes more than

one way to reach the correct answer!

Not all minds think alike.

This might not be "your" easiest way to solve

but it might be your neighbor's!   

Let's give it a try!

752 - 387 =

387 +3 = 390

390 +10 = 400

400 +300 = 700

700 +52 = 752

now add up your "count ups"

+3 +10 +300 +52 = 365

Remember take as many steps as you need, just don't forget to add them ALL up at the end!

School picture retakes on Thursday Oct. 15

I wanted to clarify...
students who have already taken school photos but would like them retaken on Thursday Oct. 15, just need to bring the original photo envelope & pictures to class by the 15th to give to the Lifetouch photographers. The only people who need an actual order form are those who were absent on picture day.

Seth Maxwell coming to IHM!!!!

What an amazing story!

https://www.thirstproject.org/about/our-story/

We are blessed to have drinking water.  Not everyone has this luxury!!
Seth is coming to IHM on Friday Oct. 16, 2015

Let's help him!

ixl certificate

AR Point goals

We have 11 of our 28 students with OVER 100% of 

their AR point goal already!

On this coming Monday 10/05/015,

your point goal should be around 73% 

to be on track to hit your goal at 100%.

Way to hit that goal out of the park 

during our first 9 weeks!

Keep reading, (if you reached 100%) your points still count for the 

total points earned for the year!

So many other students are close.

You can still reach 100%.

Read every night, it is so important!

I am so proud of everyone!

Correct way to answer essay questions.

Here is an excellent sample of an option to the answers on the back of the test.  

You should rephrase the question in your sentence then answer it!

Good job, to the author of this paper in my class!

Remember, I don't count off for spelling (unless it's a Spelling test).  Try your best and sound it out.  

Take your time when writing.  Have pride in what it looks like! 

Penny Wars

Hello the IHM 8th graders would like to challenge your students to a PENNY WAR to fight for the THIRSTY! 

We hope you take us up on our challange! The class that wins with the most WEIGHT of COINS will win the PENNY WAR!  

It is our hope to bring in as much money tomorrow for the Thirst Project! Mrs. Hutson's class has done a great job preparing our school, now we can FLOOD the Thirst Project with our donations!

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