FTCE General Knowledge Math Latest
2022
operations ✔✔addend+addend=sum
sum-addend=difference
factorXfactor=product
dividend ÷ divisor = quotient
division ✔✔dividend
---------- = quotient
divisor
divide by zero ✔
...
FTCE General Knowledge Math Latest
2022
operations ✔✔addend+addend=sum
sum-addend=difference
factorXfactor=product
dividend ÷ divisor = quotient
division ✔✔dividend
---------- = quotient
divisor
divide by zero ✔✔any number ÷ 0 = can't do it
0 ÷ any number = 0
0 cannot be a divisor
prime number ✔✔whole number greater than 1 that is divisible only by itself and 1
composite ✔✔whole number greater than 1 that are not prime
prime factors ✔✔use factor tree - e.g. 36 = 2∗2∗3∗3
GCF greatest common factor ✔✔the greatest number that will divide evenly into the two numbers
list factors of each then chose the highest one
LCM least common multiple ✔✔the smallest product that is a multiple of each of the counting
numbers....factor each/ build a product consisting of each factor used the most number of times it
appears as a factor. e.g...24=2∗2∗2∗3 36=2∗2∗3∗3 so LCM (24,36) = 2∗2∗2∗3∗3 =72
1 is neither prime or composite ✔✔...
rational numbers ✔✔whole numbers, integers, positive and negative fractions, decimals, and
percents
whole numbers ✔✔counting numbers and 0
integers ✔✔numbers that are either negative or positive and 0....o is not positive or negative
rational numbers ✔✔all numbers that can be written as positive or negative fractions ...rational
numbers can be expressed as fractions, decimals, or percents
80%=.80=.8= ✔✔4/5
60%=.60=.6= ✔✔3/5
40%=.40=.4= ✔✔2/5
20%=.20=.2= ✔✔1/5
87 1/2% = .875= ✔✔7/8
62 1/2 %=.625= ✔✔5/8
37 12%=.375= ✔✔3/8
12 1/2% = .125= ✔✔1/8
66 2/3%=.66 2/3 = ✔✔2/3
5%=.05= ✔✔1/20
4%=.04= ✔✔1/25
1%=.01=1/100 ✔✔1/100
irrational square roots ✔✔irrational square roots do not have a number that they are evenly
multiplied by...if given an irrational square root to estimate find the 2 numbers it falls between e.g.
square root of 41 is between 6 and 7
rational square roots ✔✔nonnegative number that multiplies by itself to get the number e.g...square
root of 1=1, square root of 25 is 5
Is 1/0 a real number? ✔✔NO...0 cannot be a divisor
exponential notation ✔✔eg...3⁴ = 3
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