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Small Decimal Rounding to a Leading Digit

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Texting Tallies
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Credit: Bob Mical
Source: http://www.flickr.com/photos/51764681@N02/6840983795
License: CC BY-NC 3.0

Do you have your own phone? Do you frequently text? Who pays for your messaging service—you or your parents? Have you ever wondered if it's cheaper to pay per text or to pay for a monthly messaging plan? Well, simply by estimating decimal products and quotients, you can easily figure out dilemmas just like this one.

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Think about the difference between paying per text sent and paying for a certain number of texts per month. Verizon Wireless offers a plan under which you can send a text for 20 cents per message. That is a pay-per-text plan.

Credit: LearningLark
Source: http://www.flickr.com/photos/44282411@N04/6738333743/
License: CC BY-NC 3.0

The company also offers several pay-by-the-month plans. Under one plan, you can send up to 250 texts for a fee of $5.00 per month. Under another plan, you can send up to 500 texts for a fee of $10.00 per month. Which deal is the best deal? Well, the answer actually depends on your personal texting habits and how many messages you send per month. Let's say that you estimate that you send around 50 texts per month.

50 \times \$0.20=\$10

Under the pay-per-text plan, you'd be spending $10.00 per month. It would be cheaper to pay $5.00 per month and get up to 250 texts included in your plan!

See for yourself: http://www.youtube.com/watch?v=S0mj0acGJPc

Explore More

Check out the following link to learn more about text messaging and the rise of other forms of mobile communication.


Image Attributions

  1. [1]^ Credit: Bob Mical; Source: http://www.flickr.com/photos/51764681@N02/6840983795; License: CC BY-NC 3.0
  2. [2]^ Credit: LearningLark; Source: http://www.flickr.com/photos/44282411@N04/6738333743/; License: CC BY-NC 3.0


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