### The Basic Number System

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Across
4.A number which is either rational or irrational is called a ________________ number
6.A number which can be put in the form a/b, where a and b are both integers and b ≠ 0 is called _________________ number
7.In a rational number a/b, a is a numerator and b is a ______________
8.The numbers 1, 2,3,4,5 ................ are ____________ numbers
9.The numbers 1, 3, 5, 7, 9, .............. are _____________ numbers
Down
1.The numbers 2, 4, 6, 8, ............ are called as _____________ numbers
2.If ‘0’ is included in the natural numbers 1,2,3,4,.............. it forms the set of ________ numbers
3.The natural numbers 1,2,3,4............ together with '0' and their negative -1,-2,-3,-4,........ are called ______________
4.When the product of two numbers is 1, each number is called the __________ of each other.
5.A number which is not rational is called as _____________ number

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