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Write the numeral in base ten:

On the planet Zurg, they use a dot numeration system. In this system, if [-  –] represents the number 12 and [–  -] represents the number 21, what does [—  —] represent?

There are 723 jellybeans in a jar. If 42 people take 17 jellybeans each from the jar, then how many are left?

Write the number 210 in Babylonian.  Use V for the triangle and < for the 'less than.'

Write the place value of the underlined numeral: 913,150

Jana has 18 stuffed animals. Shawna has 12 stuffed animals.  Write a number sentence showing how many more stuffed animals Jana has than Shawna.

What is the least number of elements that set Q can have?

Jake is doing some chores for his father. He takes 50 minutes to clean the garage, 40 minutes to mow the lawn, and 55 minutes to trim the hedges.  How much time, expressed in hours and minutes, did he spend working?

is equal to the universal set

Write the numeral in words: 2,600,497