LuciusD
contestada

show one way to count from $82 to $512 without subtraction or multiplication, but on a number line? This is me tryin to understand my second graders math homework and I am feeling horribly stupid about it. Please any answers to this specific question?

Respuesta :

VenusRetrograde
Okay, so we start at '$82'

$82

let's add $100

$82+$100=$182

lets add another 100

$82+$100+$100=$282

lets add another $100

$82+$100+$100+$100=382

lets add another $100

$82+$100+$100+$100+$100=$482

Now we can't add another $100, since that will take us to $582, and we need to get to $512, so lets add $20....

$82+$100+$100+$100+$100+$20=$502

Okay, we're getting really close! Let's add $10.

$82+$100+$100+$100+$100+$20+$10=$512

(If you were to show your work on a number line, you would simply keep moving up by $100 until you couldn't anymore, and then move up by $20, and finally by $10, until we get to $512)
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a simpler way to solve this...

Okay, so we start at '$82'

$82

let's add $400

$82+$400=$482

now lets add $30

$82+$400+$30=$512


**Hope this helps....
To do this we will just use the DISTRIBUTIVE property to answer it. 

We will add 100 5 times and then 12 in the end.

We will start with $82.

82 + 100 = 182

182 + 100 = 282

282 + 100 = 382

382 + 100 = 482

482 + 100 = 582

OK, so we have done $500.   

Now we will add 12. 

582 + 12 = 594

So, Our answer is $594. 

Hope I helped ya!!!!!!!!