Arithmetic Review Flashcards
(36 cards)
Neg x neg
Pos
Pos. x pos.
Pos.
Pos x neg
Neg
When using quotient/remainder result, 6/24=
0 remainder 6
Even + even
Even
Odd + odd
Even
Even + odd
Odd
Even x even
Even
Odd x odd
Odd
Even x odd
Even
T/F: 1 is the first prime number
FALSE. 1 is not counted as a prime number. 2 is the first prime number.
How many even prime numbers?
Only one. 2 is the only even prime.
Not a prime number?
“Composite number”
0 can never be the ________ in a fraction.
Denominator
Can NEVER be 0
To divide fractions
invert second fraction –> multiply
Neg number to an even power is always _________, and a neg number with an odd exponent is always __________.
Neg number to an even power is always positive, and a neg number with an odd exponent is always negative.
All positive numbers have two square roots:
one pos and one neg (except 0; square root of 0 is 0)
PENMDAS
Parentheses, Exponents, NEGATION… M/D, A/S
- √100
-10
Square root of neg. number
undefined by the real number system
(√a)(√b)
√(ab)
(√a)/(√b)
√(a/b)
For odd-order roots, there is/are __________ for every number “n”, even when “n” is negative.
exactly ONE
For even-order roots, there is/are ___________ for every positive number “n”, and ________ roots for any negative number “n”.
exactly two for every positive number “n”
and NO roots for any neg. number “n”
