Algebra Math 313

Please do the following exercises from chapter (12.1). You should follow the instructions carefully!!!

12. Use an array, a rectangular area, a number line, or base-ten blocks to model each of these properties for a particular instance.

Don't use plagiarized sources. Get Your Custom Essay on
Algebra Math 313
Get a plagiarism free paperJust from $13/Page
Order Essay

a. distributive property of multiplication over addition: 7 × (44 + 6) = 7 × 44 + 7 × 6

b. associative property of addition: 96 + 21 = 96 + (4 + 17) = (96 + 4) + 17

c. commutative property of multiplication: 17.4 × 3.5 = 3.5 × 17.4

d. associative property of multiplication: (4 × 3) × 6 = 4 × (3 × 6)

e. commutative property of addition: 314+838=838+314

15. Following is a child’s description of his or her computation of 21 × 15.

▶ To find twenty-one times fifteen, I multiply 20 × 15 because that is easy. Two times fifteen is thirty, so for twenty I add a zero and get three hundred. But I need one more than twenty. Three hundred and one! ◀

a. If the child is using correct logic, discuss what property he or she may be recognizing and describing. If the child is making an error, describe what property he or she appears not to understand.

b.Model the child’s correct thinking or use the model to show the correct thinking.

Name of the Textbook in case you need it: Reconceptualizing Mathematics for Elementary School Teachers, 3rd Edition by Sowder, Sowder & Nickerson (2017). You should be able to find it online.

Homework Valley
Calculate your paper price
Pages (550 words)
Approximate price: -

Our Advantages

Plagiarism Free Papers

All our papers are original and written from scratch. We will email you a plagiarism report alongside your completed paper once done.

Free Revisions

All papers are submitted ahead of time. We do this to allow you time to point out any area you would need revision on, and help you for free.


A title page preceeds all your paper content. Here, you put all your personal information and this we give out for free.


Without a reference/bibliography page, any academic paper is incomplete and doesnt qualify for grading. We also offer this for free.

Originality & Security

At Homework Valley, we take confidentiality seriously and all your personal information is stored safely and do not share it with third parties for any reasons whatsoever. Our work is original and we send plagiarism reports alongside every paper.

24/7 Customer Support

Our agents are online 24/7. Feel free to contact us through email or talk to our live agents.

Try it now!

Calculate the price of your order

We'll send you the first draft for approval by at
Total price:

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

Our Services

We work around the clock to see best customer experience.


Flexible Pricing

Our prices are pocket friendly and you can do partial payments. When that is not enough, we have a free enquiry service.


Admission help & Client-Writer Contact

When you need to elaborate something further to your writer, we provide that button.


Paper Submission

We take deadlines seriously and our papers are submitted ahead of time. We are happy to assist you in case of any adjustments needed.


Customer Feedback

Your feedback, good or bad is of great concern to us and we take it very seriously. We are, therefore, constantly adjusting our policies to ensure best customer/writer experience.