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The number ____ is fifty thousand more than 15,343,014. Twenty-five thousand nine...
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Middle School Teacher
Fifty thousand more than 15,343,014 is 15,393,014.
25,981 is 3 less than 25,984
The key to figuring out this kind of problem is to understand the decimal numeration system. Moving from right to left, each place is worth 10 times more than the place before it. Moving from left to right, each place is worth 10 times less.
Also, the numbers form a pattern. The first three -- moving from right to left, are units (ones), tens and hundreds. The next three are the same thing, but in the thousands family. The next three are the same thing, but in the millions family.
So, in 1X2,345,789, the X is in the second place in the third family, so it is tens of millions.
In 23X,456, the X is in the first place in the second family, so it is units (ones) of thousands.
Posted by cburr on August 11, 2009 at 11:54 AM (Answer #1)
High School Teacher
The given number is50,000 more the 15,343,014 is equivalent to :
The given number is 50,000+15,343,014 =15,393,014.
If you troble in adding horizontally put them one below the other according the place value of digits in numbers as below and add:
b)25981 is ---- less than 25,984
is equivalent to 25984-25981 = (25981+3)-25981= (3+25981)-25981=3+(25081-25981)= 3.
Posted by neela on August 11, 2009 at 4:37 PM (Answer #2)
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