Operations with Real Numbers

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6 Terms

1
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what is a number line

a line on which each point is associated with a number, on a number line smaller numbers are on the left and greater numbers are on the right

2
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what is the absolute value of a number

the distance between the number and the number zero on the number line and it can never be negative only positive

<p>the distance between the number and the number zero on the number line and it can never be negative only positive </p>
3
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what is an exponent

An exponent tells you how many times to multiply a number by itself.

<p>An exponent tells you how many times to <strong>multiply</strong> a number by itself.</p>
4
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law of exponents

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5
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what is the sqaure root of a number

The square root of a number a, is the number that when squared gives a², square roots only return non-negative results, You can’t take the square root of a negative number in the real numbers.

<p>The <strong>square root</strong> of a number a, is the number that when squared gives a², square roots only return <strong>non-negative</strong> results, You <strong>can’t take the square root of a negative number</strong> in the real numbers.</p>
6
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order of operations (pemdas)

This tells you the correct order to solve parts of a math expression: P E M D A S
→ Parentheses
→ Exponents (powers, roots)
→ Multiply and Divide (left to right)
→ Add and Subtract (left to right)