What's 8+5?

[Mai72]

8+5=

If you said 13 you would be wrong!

Doing it the Common Core way...

8- you take away 3 to make it 5

Now, you can add 5+5= 10

So 8+5= 10, not 13

 

[Mai72]

Is it any wonder the Chinese, Koreans, and Indians trounce us in math. Rote memory has its place in mathematics.

 

[BUTCH1]

In on the absolutely stupidest thread posted this year, you make Mayne look like Einstein.

 

[jlee]

wat?

 

[dighn]

ur doing it wrong

 

[Mai72]

In on the absolutely stupidest thread posted this year, you make Mayne look like Einstein.

 

[dighn]

!!

 

[Mai72]

ur doing it wrong

Enlighten me. What's the correct way?

BTW, I got this from Facebook. Seems a lot of people are very upset with Common Core.

 

[Pulsar]

8+5=

If you said 13 you would be wrong!

Doing it the Common Core way...

8- you take away 3 to make it 5

Now, you can add 5+5= 10

So 8+5= 10, not 13

Jesus Christ, you just dropped the collective IQ of anandtech by about 10 points.

HERE is the reason they give it to you that way.

If I give you two numbers, say 366 and 729, most people who do it in their head will do this:

300 + 700 = 1000
66+29 = 95

1000+95 = 1095.

Some people in their head may do it a step further, and say 60+20 = 80 and 9+6= 15, then add those together.

What they DON'T do in their head, is line them up and carry the ones, etc. So we teach kids to do math on paper by carrying the ones, etc, but people who do it in their head do it a whole lot faster and learn the tricks on how to add that way.

That's what common core is trying to teach.

While I may not agree with common core, there are a whole lot of jackasses like yourself spreading mis-information that's it become as bad as the fucking climate debate. People are choosing positions without even understanding it.

Go back to wherever you cam from, Mayne.

 

[dighn]

well if you take away 3 you gotta put it back in the end. i don't really know common core though but despite its retardedness it must still work.

 

[master_shake_]

common core...

nuff said.

 

[Pulsar]

Enlighten me. What's the correct way?

BTW, I got this from Facebook. Seems a lot of people are very upset with Common Core.

OH! Of COURSE! Facebook is simply the paragon of intelligence and education. Jesus christ.

 

[RossMAN]

Naer + Mayne = Mai72

 

[BUTCH1]

Enlighten me. What's the correct way?

BTW, I got this from Facebook. Seems a lot of people are very upset with Common Core.

As explained above you add the 3 at the end after you add up the easy part, people have been doing math without pen and paper for fucking eons yet this concept eludes you, stick to Facebook, please.

 

[Markbnj]

Naer + Mayne = Mai72

There is some deep meaning here. Perhaps some secret society is infiltrating our community. I'm feeling observed.

 

[Engineer]

Base 13.

/thread

 

[Pulsar]

There is some deep meaning here. Perhaps some secret society is infiltrating our community. I'm feeling observed.

He actually didn't get it right.

(Naer + Mayne / Incorruptible * Lemon Law) ^ Mammadore = Mai72

 

[ctbaars]

Jesus Christ, you just dropped the collective IQ of anandtech by about 10 points.

HERE is the reason they give it to you that way.

If I give you two numbers, say 366 and 729, most people who do it in their head will do this:

300 + 700 = 1000
66+29 = 95

1000+95 = 1095.

Some people in their head may do it a step further, and say 60+20 = 80 and 9+6= 15, then add those together.

What they DON'T do in their head, is line them up and carry the ones, etc. So we teach kids to do math on paper by carrying the ones, etc, but people who do it in their head do it a whole lot faster and learn the tricks on how to add that way.

That's what common core is trying to teach.

While I may not agree with common core, there are a whole lot of jackasses like yourself spreading mis-information that's it become as bad as the fucking climate debate. People are choosing positions without even understanding it.

Go back to wherever you cam from, Mayne.

I do it in my head the same way I do it on paper. ie carry. Are you sure most people do it like you say they do it?

 

[OverVolt]

Jesus Christ, you just dropped the collective IQ of anandtech by about 10 points.

HERE is the reason they give it to you that way.

If I give you two numbers, say 366 and 729, most people who do it in their head will do this:

300 + 700 = 1000
66+29 = 95

1000+95 = 1095.

Some people in their head may do it a step further, and say 60+20 = 80 and 9+6= 15, then add those together.

What they DON'T do in their head, is line them up and carry the ones, etc. So we teach kids to do math on paper by carrying the ones, etc, but people who do it in their head do it a whole lot faster and learn the tricks on how to add that way.

That's what common core is trying to teach.

While I may not agree with common core, there are a whole lot of jackasses like yourself spreading mis-information that's it become as bad as the fucking climate debate. People are choosing positions without even understanding it.

Go back to wherever you cam from, Mayne.

The way you just said it is the way they have to teach it. Its just that the people trying to carry the ones in their head get all butthurt about it.

 

[OverVolt]

I do it in my head the same way I do it on paper. ie carry. Are you sure most people do it like you say they do it?

.....aaaaaand here we go. That didn't take long at all. Wow.

 

[Pulsar]

I do it in my head the same way I do it on paper. ie carry. Are you sure most people do it like you say they do it?

I'll retract 'most' and simply say many. As numbers get bigger, carrying becomes more difficult.

HOWEVER. This fools have taken it to the level of OMG STUPID.

Watch this video for why what they're doing with common core is simply senseless:
https://www.youtube.com/watch?v=xVqqPwhZRDs

I'm all for bashing when it's justified, and common core sucks. But let's at least understand what we're bashing and why rather than just parroting the lastest Facebooking or twitter twatting.

I'd wager from my explanation, 99% of folks can at least understand where common core is coming from. Even if they disagree with it. But the way they add all the boxes and lines and circlings and horizontal to vertical additions - holy hell. It's like trying to figure out nuclear fusion. My math papers didn't look that complicated until I had to start iterating (by hand) to determine reactants in chemistry, and doing truss calculations in architecture.

 

[Mai72]

Jesus Christ, you just dropped the collective IQ of anandtech by about 10 points.

HERE is the reason they give it to you that way.

If I give you two numbers, say 366 and 729, most people who do it in their head will do this:

300 + 700 = 1000
66+29 = 95

1000+95 = 1095.

Some people in their head may do it a step further, and say 60+20 = 80 and 9+6= 15, then add those together.

What they DON'T do in their head, is line them up and carry the ones, etc. So we teach kids to do math on paper by carrying the ones, etc, but people who do it in their head do it a whole lot faster and learn the tricks on how to add that way.

That's what common core is trying to teach.

While I may not agree with common core, there are a whole lot of jackasses like yourself spreading mis-information that's it become as bad as the fucking climate debate. People are choosing positions without even understanding it.

Go back to wherever you cam from, Mayne.

You would be correct, and I would be wrong.

I'm familiar with rounding the numbers to come up with the answers very quickly. Everyday Math taught the exact same concept. It seems that a lot of people are upset about Common Core.

Excuse me. I will exclude myself from my own thread.

 

[Capt Caveman]

Naer + Mayne = Mai72

All idiots at an equal level.

 

[IronWing]

It seems that a lot of people are upset about Common Core.

People are upset when their potato chips aren't round. Most people are clods.

 

[mugs]

Jesus fuck, you're stupid.

8+5 is still 13 the "Common Core way." They just teach you different ways to get there.

I don't know where you're getting this 8 + 5 = 10 bullshit, but I've seen this picture making the rounds: http://youngcons.com/this-kid-sticks-it-to-common-core-big-time-when-he-answered-this-math-problem/

Children are taught that when you're adding 8 + 5, you can break it down to 8 + 2 = 10, and 10 + 3 = 13 (and obviously, 2 + 3 = 5). There are good reasons for doing this. 1. We have an easier time doing math with round numbers. 2. It demonstrates the relationship between different place values of numbers.

The old way of teaching math was rote memorization and recitation of procedures. The new way teaches kids to understand what's happening behind the scenes before teaching the most efficient way to do mathematical operations. These kids aren't going to do 8+5 this way for the rest of their life, they're being taught this way so they understand why 8+5=13.

"That's the stupidest thing I've ever heard" said every Teabagger everywhere.

Do this in your head: 142 - 57

Did you:
1. "Borrow" 1 from the 4 in 142, then subtract 7 from 12 and 5 from 13, placing the first result in the ones place and the second result in the tens place.
2. Add 42 + 43
3. 100 - (57 - 42)

If you picked 1, congratulations! You learned math exactly the way it has been taught for decades. It's kind of a stupid way to do math when you look at it though, isn't it?

If you picked 2, you did it the Common Core way. You probably weren't taught to do it that way, you just figured it out and realized how much easier it is than option 1.

If you picked 3, you've demonstrated an understanding of numbers that the Common Core tries to teach.

Math has always come easy to me. When I see people complaining about Common Core math on the Internet, it's usually stupid people following memorized procedures who have no understanding of math. I see the way math is being taught, and it's the way I've always understood math without being taught it. If these methods help kids understand math half as well as I did, they'll be kicking ass when they get to high school.