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32 Cards in this Set

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What are square numbers?
A number that can be expressed as the product of multiplying two equal numbers (e.g. 36=6x6)

What are cube numbers?
A number that can be expressed as the product of multiplying three equal numbers (e.g. 77=3x3x3)

What are triangle numbers?
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.

How do you multiply fractions?


How do you divide fractions?


How do you cancel down fractions?


How do you add/subtract fractions?


How do you find the fraction of something?


How do you order fractions?


What are the common conversions of Fractions, Decimals and percentages?


How do you convert a Fraction to a Decimal?
Divide the top number of the fraction by the bottom number of the fraction.

How do you convert a Decimal to a Percentage?
Multiply by 100.

How do you convert a Percentage to a Decimal?
Divide by 100.

How do you convert a Terminating Decimal to a fraction?
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.

How do you convert a recurring Decimal to a fraction?


What are the two types of data and how do they differ?
>Quantitative - numerical data
>Qualitative - not numerical.

What are the two types of quantitative data and how do they differ?
>Continuous - can have any value and is usually measured, e.g. temperature, length
>Discrete - can only take certain values, e.g. shoes sizes, population.

Define data?
Information being collected.

Define population?
All the possible data that can be collected for the survey.

Define sample?
Information taken from just part of the population.

Define census?
When the entire population is used for the survey.

Define bias?
If an adequate sample is not taken then the results might be biased.

Define random sampling?
Data is collected randomly.

Define systematic sampling?
Data is collected according to some rule, e.g. every 10th item of data.

Define quota sampling?
The population is divided into groups or categories and certain numbers from each will be surveyed.

Define stratified sampling?
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.
random, size
What are the 5 types of chart?
>Vertical bar chart
>Horizontal bar chart
>Pie chart
>100% chart
>Pictogram

State the steps to find the angle for pie charts.


What is the written method for adding?


What is the written method for subtracting?


What is the written method for multiplying?


What is the written method for dividing?