# algebra 1-2

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what is a natural number?

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Are the following true or false? 1. The difference of two natural numbers is always a natural number. 2. The sum of two natural numbers is always a natural number. 3. The quotient of two natural numbers is always a natural number.
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The formula t(n+1)over 2 will determine a triangular number, where n is a natural number. For what value of n will the triangular number 325 be found?
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What would make this statements False. The opposite of each natural number is a natural number. There is no whole number that has an opposite that is a whole number.
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What would make this statements False? The opposite of each natural number is a natural number. There is no whole number that has an opposite that is a whole number.
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Choose a natural number between 1 and 30, inclusive. What is the probability that the number is a multiple of 3?
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A natural number decreased by 30 times its reciprocal is 1. Find the natural number.
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Determine all pairs (m, n) of a two-digit natural number m and a single-digit natural number n satisfying the following conditions. 1) If the number n is given as the number between the two digits of the number m, then a three-digit …
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Determine all pairs (m, n) of a two-digit natural number m and a single-digit natural number n satisfying the following conditions. 1) If the number n is given as the number between the two digits of the number m, then a three-digit …

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