Vocabulary

Absolute Value - A number's distance from zero on the number line. The absolute value of a number is denoted by vertical lines before and after it. For example: |8|, which is read as "the absolute value of 8."

Exponent - In an expression of the form x to the n power (xn), the exponent is n. An exponent indicates how many times the number to its left (the base) is to be used as a factor. 54 is read as "five to the fourth power" and means 5 x 5 x 5 x 5.

Scientific Notation - A form of writing numbers as the product of a decimal number greater than or equal to 1 and less than 10 and a power of 10. Using scientific notation, 43, 500 would be written 4.35 x 104.

Square Root - One of two identical factors of a number. Symbol: √. Example: √25 = 5 because 5 x 5 = 25.

 
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  Math Standards  

A
Use scientific notation to express large numbers and numbers less than 1.

F
Explain the effects of operations on the magnitude of quantities.

I
Estimate, compute, and solve problems involving scientific notation, square roots, and numbers with integer exponents.

F
Use precise mathematical language and notations to represent problem situations and mathematical ideas.