What are a score or more facts and figures regarding numbers?

Answer 1

1 They are now in the form of Hindu-Arabic numerals2 They once were in the form of Roman numerals3 They need a zero symbol in the form of Hindu-Arabic numerals4 They don't need a zero symbol in the form of Roman numerals5 They can be added, subtracted, multiplied and divided6 They form the set of natural numbers or counting numbers7 They form the set of integers or whole numbers8 They are all equal to minus or plus 1 when raised to the power of zero9 They are real numbers when located on the number line10 They are fractions when expressed as part of a whole number11 They can be expressed as decimals12 They can be expressed as percentages13 They can be referred to as numbers or numerals14 They can be the part of an unknown variable in algebra15 They can be expressed in scientific notation which is the same as standard form16 They are composite numbers if they have more than two factors17 they are prime numbers if they have only two factors18 They can be negative or positive numbers19 They are Irrational Numbers if they can't be expressed as fractions20 They can be expressed as mixed numbers21 They are infinite22 They can be in a ratio to one another23 They can form and find the solutions to equations24 They can be expressed as surds if they are irrational numbers25 They say: ' Your number is up' when you're finally finished