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Mathematics 20 Online
OpenStudy (anonymous):

How many numbers between 100 and 300 that begin or end with 2?

OpenStudy (anonymous):

120

OpenStudy (anonymous):

200 to 299 account for 100 of them there are more

OpenStudy (anonymous):

actually its 119

OpenStudy (anonymous):

really?

OpenStudy (anonymous):

How do you make sure?

OpenStudy (anonymous):

count

OpenStudy (anonymous):

100-199 there are 10 numbers that end in 2

OpenStudy (anonymous):

102 112 122 132 142 152 162 172 182 192

OpenStudy (anonymous):

from 200-300 there are 99 numbers that begin with 2

OpenStudy (anonymous):

how many numbers 200 to 299 inclusive?

OpenStudy (anonymous):

Even so it doesn't add up to 119 does it? @seesawn

OpenStudy (anonymous):

no, it aadddss uupp to 109, my bad

OpenStudy (anonymous):

misread the question

OpenStudy (anonymous):

But the number of numbers from 200-299 inclusive adds up to 100, how is it 99?

OpenStudy (anonymous):

i am fairly sure that is not the right answer

OpenStudy (anonymous):

So 110 perhaps?

OpenStudy (anonymous):

299-200=99

OpenStudy (anonymous):

yes, 110 i think is right

OpenStudy (anonymous):

the 100 numbers 200 through 299 and also the ten that begin with 1__

OpenStudy (anonymous):

i just counted on my fingers -.- it is 110

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