to multiply a fraction by a whole number write the whole number as a fraction with the denominator 1. multiply the numerator then multiply the denominators. to convert an improperfraction into a mixed number you divide the numerator by the denominato
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All the prime numbers
2,3,5,7,11,13,17,19,23,29,73,79,83,89,97
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highest common factor (HCF)
the largest number that divides evenly into all numbers.
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lowest common factor (LCM)
multiply each factor the greatest number of times it occurs in any of these numbers,the smaller number can be divided
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what is divisibilty?
rule for determining weather one whole number is divisible by another.
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law on index notaition
index laws are the rules to simplifying expressions involving powers of the sme base number ,(watch out for powers of negative numbers.)
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to find frequency in pie chart
angle proportion x total angle .
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mean
add up the values in the data set then divide by number of values you added.
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mode
identify which value occurs in the data set .
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median
list the values in numerical set and see what value is in the middle.
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range
the biggest value subtracted by the lowest value
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acute and obtuse
acute angle is one under 90 degrees and anything above that is obtuse.
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