The real number system
100

what is the number system for -11

Rational number and Integer number 

200

what is the number system for 0.1212121212...

Irrational Number 

300

what is the number system for 0?

whole numbers,integers,rational number 

400

is -15 rational or irrational number 

Rational Number 

500

is 23/100 rational or irrational number

Rational number 

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