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math%3A fractions addition %26 subtraction free

Article

Google subtracts MathML from Chrome, and anger multiplies

Because of security and performance issues, Google's browser will rely on a JavaScript workaround, not native support, for showing math equations. That's angered researchers who like the Web standard.

By November 5, 2013

Review

Channel Master DVR+

Even if it is a little rough around the edges, the Channel Master DVR+ delivers on the cord-cutter promise of an over-the-air DVR+ without subscription fees.

May 1, 2014

3.5 stars Editors' rating May 1, 2014

MSRP: $249.99

Review

Apple iPhone 4 Virgin Mobile

At a hefty cost, the Virgin Mobile iPhone 4 delivers an unlimited plan without a contract -- just don't expect blazing-fast data speeds.

August 17, 2012

4 stars Editors' rating August 17, 2012
Article

Acer to sell touch Chromebook at fraction of Google Pixel price

The company's new C720P Chromebook, due out next month, is just the second in the market to offer touch screen. But it will cost a mere $300, compared with the Google Pixel's $1,299 price tag.

By November 26, 2013

Review

Kinivo BTC450

The Kinivo BTC450 is a good and inexpensive choice for adding Bluetooth to cars with an auxiliary input, but it is short on features.

April 25, 2013

3 stars Editors' rating April 25, 2013
Editors' Take

Pentax K-5 IIs

The K-5 II gets an enhanced autofocus system, plus a sibling without an antialiasing filter. And they're accompanied by a couple of new lenses.

September 10, 2012

Review

SoundID SID Six (Black/Silver)

Though the Sound ID Six comes with a few interesting customization options, its $99.99 price tag is too high for its underwhelming performance.

July 20, 2012

3 stars Editors' rating July 20, 2012

MSRP: $99.99

Article

Frog Fractions: the best Flash game you'll ever play

Eat bugs! Learn about fractions! Except ... not really, and we are confused.

By October 25, 2012

Article

Deep breath! HeartMath turns iPhone into de-stressing tool

An app paired with an earlobe sensor that measures heart rate guides users through focused breathing sessions. CNET's Elizabeth Armstrong Moore tests her level of "coherence."

By March 1, 2013

Article

FCC to free up additional Wi-Fi spectrum to boost speeds

FCC Chairman Julius Genachowski said Wednesday at CES that the agency plans to free up 195MHz of 5GHz wireless spectrum to improve the capacity and speed of unlicensed Wi-Fi by 35 percent.

By January 9, 2013