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19 Cards in this Set
- Front
- Back
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Decimal to Fraction |
- Decimal numbers are the numerator - Place value of the last digit is the denominator - Simplify |
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Fraction to Decimal |
Divide the numerator by the denominator using long division |
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Decimal to Percent |
Move the decimal 2 spaces to the right. |
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Percent to Decimal |
Move the decimal 2 spaces to the left |
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Mode |
The most frequent number in a data set. Can be more than one number. |
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Range |
Difference between the highest and lowest number in a data set. |
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Median |
The middle number in a data set (If there are 2 middle numbers, find the mean) |
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Mean/Average |
The sum of all values in a set, divided by the number of values. |
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Quartiles |
The points between the median and the lowest or highest value. |
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Unit Price |
The cost for a single unit measurement of a product |
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Rate |
The ratio of two measurements |
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Multiply by a positive Power of 10 |
Shift the decimal point to the right by the number of places in the exponent Ex: 46.5 × 10² = 4650 |
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Divide by a positive Power of 10 |
Shift the decimal point to the left by the number of places in the exponent Ex: 3.5 ÷ 10⁴ = 0.00035 |
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Unit Multiplier |
Ratio with units that equal 1 and are used to convert units. Ex: 12in/1ft or 1ft/12in |
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Order of Operations |
Parentheses, Exponents, Multiplication/Division, Addition/Subtraction PEMDAS |
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Average = Sum / # of numbers |
Sum of a set of numbers = Average × # of numbers |
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Integers |
All whole numbers and their opposites (negatives) {...-3, - 2, - 1, 0, 1, 2, 3...} |
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Absolute Value |
The distance a number is from 0 It is always positive |3|= 3, |-2|= 2 |
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Sales Tax |
The amount of tax on a purchase, rounded to the nearest penny |
