ch.4 fact,fract,expo
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| what are the rules of divisibility for 2,3,4,5,6,8,9,10 | 2:if it ends in an even number
3:if the sum of the digits is divisible by 3
4: if the last two numbers are divisible by 4
5: if it ends in 5 or 0
6: if its divisible by 2 and 3
8:if the last 3 digits are divisible by 8
9:same as 3
10: ends in 0
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| what is a factor | any number that can be divided evenly into another number
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| what is the order of operations | parenthatseees
exponents
multiply divide
add subtract
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| what is an exponet | a method of writing repetitive multiplication. how many times to multiply a number by itself.
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| -3^2 means... | -3 to the 2nd power
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| what is a prime number | a number that can only be divided by 1 and itself
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| what is a composite number | a number that can be divided by more than 1 and itself
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| what is the GFC | the greatest number divisible that divides into another number
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| what is a variable GFC | ex : x^2
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| what is prime factorizaton | the break down of composite numbers into smaller numbers
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| how do you find prime factorization using the GFC | prime trees
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| what is the difference between -3^2 and (-3)^2 | -3^2 = -6
(-3)^2 = 6
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| what is the base | the base is the number you are multiplying by
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| what is the power | the power is the number of times you are multiplying the base
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| anything to the power of 0 is ... | 1
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| anything to the power of 1 is ... | itself
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| rational number | any number that can be written in the form of a/b where b is not 0
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| how to write negative rational numbers | the bottom number can not be negative
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| power to the power rule | multiply the power
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| the zero exponent rule | any exponent that is zero the answer is 1
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| the negative exponent rule | find the reciprocal
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| example of writing without zero or negative exponents | bring the negatives to the opposite side of the fraction bar and make them positive and the zeros become ones and are not in the final answer
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| example of writing without a fraction bar | bring the numbers from the bottom to the top and rewrite them as their reciprocal
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| Emily Berg | Period 3
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Created by:
bergemily
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