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32 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What are square numbers?
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A number that can be expressed as the product of multiplying two equal numbers (e.g. 36=6x6)
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What are cube numbers?
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A number that can be expressed as the product of multiplying three equal numbers (e.g. 77=3x3x3)
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What are triangle numbers?
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A number that can be represented by a triangular array of dots with the
number of dots in each row from the base decreasing by one. |
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How do you multiply fractions?
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How do you divide fractions?
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How do you cancel down fractions?
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How do you add/subtract fractions?
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How do you find the fraction of something?
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How do you order fractions?
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What are the common conversions of Fractions, Decimals and percentages?
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How do you convert a Fraction to a Decimal?
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Divide the top number of the fraction by the bottom number of the fraction.
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How do you convert a Decimal to a Percentage?
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Multiply by 100.
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How do you convert a Percentage to a Decimal?
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Divide by 100.
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How do you convert a Terminating Decimal to a fraction?
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Put the number after the decimal point as the top number of the fraction, then place a 1 followed by the same amount of 0's as there are digits after the decimal point on the bottom of the fraction.
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How do you convert a recurring Decimal to a fraction?
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What are the two types of data and how do they differ?
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>Quantitative - numerical data
>Qualitative - not numerical. |
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What are the two types of quantitative data and how do they differ?
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>Continuous - can have any value and is usually measured, e.g. temperature, length
>Discrete - can only take certain values, e.g. shoes sizes, population. |
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Define data?
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Information being collected.
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Define population?
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All the possible data that can be collected for the survey.
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Define sample?
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Information taken from just part of the population.
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Define census?
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When the entire population is used for the survey.
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Define bias?
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If an adequate sample is not taken then the results might be biased.
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Define random sampling?
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Data is collected randomly.
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Define systematic sampling?
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Data is collected according to some rule, e.g. every 10th item of data.
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Define quota sampling?
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The population is divided into groups or categories and certain numbers from each will be surveyed.
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Define stratified sampling?
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The population is divided into groups or categories (strata) and a random sample is taken from each category in proportion to the size of the category.
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random, size
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What are the 5 types of chart?
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>Vertical bar chart
>Horizontal bar chart >Pie chart >100% chart >Pictogram |
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State the steps to find the angle for pie charts.
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What is the written method for adding?
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What is the written method for subtracting?
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What is the written method for multiplying?
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What is the written method for dividing?
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