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36 Cards in this Set
- Front
- Back
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An integer is divisible by 3 if...
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...if its digits sum to a multiple of 3
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An integer is divisible by 4 if...
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...if its last two digits are a multiple of 4
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An integer is divisible by 6 if...
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...if it divisible by 2 and 3
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An integer is divisible by 9 if...
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...if its digits sum to a multiple of 9
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5% as a decimal and fraction
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0.05 and 1/20
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12.5% as a decimal and fraction
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0.125 and 1/8
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20% as a decimal and fraction
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0.2 and 1/5
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distance =
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rate x time
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to divide powers with the same base...
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subtract the exponents and keep the base the same
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what happens when an exponent is negative?
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Take the reciprocal of the base and change the sign of the exponent
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what happens when an exponent is negative?
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Take the reciprocal of the base and change the sign of the exponent
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what happens when an exponent is negative?
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Take the reciprocal of the base and change the sign of the exponent
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when can radicals be added and subtracted?
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only when the number under the radical is the same! 6radical7 + 2radical7 = 8radical7
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to multiply radicals...
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...multiply the numbers under the signs and then put a single radical sign over them the new number
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to divide radicals...
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...divide the two numbers in question and then put them under a single radical
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pythagorean triplets (2)
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3:4:5 (leg:3 leg:4 hypotenuse:5)
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define: parallelogram
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a parallelogram has two pairs of equal sides. Opposite angles are equal. Consecutive angles add up to 180
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which is bigger: 8/3 or the square root of 7?
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to figure this out, square both sides. They compare 64/9 to 7 (or 63/9)...64/9 (or 8/3) is a little bigger
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An integer is divisible by 3 if...
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...if its digits sum to a multiple of 3
|
|
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An integer is divisible by 4 if...
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...if its last two digits are a multiple of 4
|
|
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An integer is divisible by 6 if...
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...if it divisible by 2 and 3
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|
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An integer is divisible by 9 if...
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...if its digits sum to a multiple of 9
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|
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5% as a decimal and fraction
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0.05 and 1/20
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|
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12.5% as a decimal and fraction
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0.125 and 1/8
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|
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20% as a decimal and fraction
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0.2 and 1/5
|
|
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distance =
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rate x time
|
|
|
to divide powers with the same base...
|
subtract the exponents and keep the base the same
|
|
|
what happens when an exponent is negative?
|
Take the reciprocal of the base and change the sign of the exponent
|
|
|
what happens when an exponent is negative?
|
Take the reciprocal of the base and change the sign of the exponent
|
|
|
what happens when an exponent is negative?
|
Take the reciprocal of the base and change the sign of the exponent
|
|
|
when can radicals be added and subtracted?
|
only when the number under the radical is the same! 6radical7 + 2radical7 = 8radical7
|
|
|
to multiply radicals...
|
...multiply the numbers under the signs and then put a single radical sign over them the new number
|
|
|
to divide radicals...
|
...divide the two numbers in question and then put them under a single radical
|
|
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pythagorean triplets (2)
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3:4:5 (leg:3 leg:4 hypotenuse:5)
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|
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define: parallelogram
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a parallelogram has two pairs of equal sides. Opposite angles are equal. Consecutive angles add up to 180
|
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which is bigger: 8/3 or the square root of 7?
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to figure this out, square both sides. They compare 64/9 to 7 (or 63/9)...64/9 (or 8/3) is a little bigger
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