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DynaMath for grades 3–6 provides nonfiction and fiction-based exercises that help teach math, math articles that connect learning to the real world, and interactive activities to get kids excited about numbers!
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Numbers in the News

Summer Web Edition!

July

Try these puzzles on your own.
Mountain Man

Ed Viesturs is known for having his head in the clouds—really! This 46-year-old from Seattle, Washington, just became the first American to climb all 14 of the worlds tallest peaks (mountain tops). Each of the 14 peaks is at least 8,000 meters (26,250 feet) tall. The highest one is Mt. Everest in Nepal, which measures 29,035 feet. The last one Viesturs climbed was Annapurna, in the country of Nepal. It was 26,545 feet (ft) tall!

1. To find out how many total feet Viesturs climbed, add the heights of Annapurna and Mt. Everest to the following heights of the other 12 peaks:

  • 28,250 ft
  • 28,169 ft
  • 27,939 ft
  • 26,794 ft
  • 27,765 ft
  • 26,758 ft
  • 26,750 ft
  • 26,658 ft
  • 26,470 ft
  • 26,400 ft
  • 26,360 ft
  • 26,300 ft

    2. There are 5,280 feet in a mile. How many miles did Viesturs climb while going up these 14 peaks? (Round to the nearest mile.)

    Try it yourself. Then, scroll down to the bottom of this page, hold down your mouse button, and scroll over the blank area. The answer will appear!

    Little-League Lady

    Katie Brownell has an amazing arm! Recently, the 11-year-old pitched a perfect game. A perfect game means that no one from the other team gets on base during the entire game. Katie struck out all the batters she faced during one Little League game. And all of those batters were boys. Katie, who is the only girl in the 71-player Little League program in New York, may also be the first girl in all of Little League to pitch a perfect game.

    Three strikes equal 1 out. Katie struck out 3 players an inning for 6 inningsthe length of her Little League game. How many strikes did Katie throw?

    Try it yourself. Then, scroll down to the bottom of this page, hold down your mouse button, and scroll over the blank area. The answer will appear!

    Here is the answer to the Numbers in the News problem, "Straw-ng Man":
    Lukas would have drank 40 cans of soda with the straws.

    Here is the answer to the problem, "Sticky Situation":
    The Snapple popsicle weighed a total of 35,000 pounds.

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