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A group of middle school girls is puzzling over a pie chart about reading habits in the U.S. Their “math designer” stands at ...

convert the numbers from standard form into decimal form or ordinary numbers complete the calculation convert the answer back into standard form Calculate \((4 \times 10^9) \times (7 \times 10^{-3})\) ...

While no one hit the Powerball jackpot Monday, one California ticket matched all five white-ball numbers but missed the Powerball, earning a $708,443 prize. The Powerball's estimated jackpot for the ...

Did anyone win Monday night's Powerball drawing for the estimated jackpot of $1.1 billion, the sixth-largest ever? The cash option for the Dec. 15 jackpot was $524.7 million. Here's what we know about ...

Learn the Rule of 72 To Set Realistic Goals and Compare Investments Peter Gratton, Ph.D., is a New Orleans-based editor and professor with over 20 years of experience in investing, risk management, ...

Thinking about numbers using frames of 10 can be a helpful way to learn basic number facts. The four games that can be played with this applet help to develop counting and addition skills. (This ...