Unit 2 Flashcards

-Roman Numerals -Base 5 -Divisibility -The number system -exponents -cube roots

I=

V=

X=

L=

C=

D=

M=

I=

V=

X=

L=

C=

D=

M=

I= 1

V=5

X=10

L=50

C=100

D=500

M=1000

5^4 =

5^3=

5^2 =

5^1 =

5^4 = 625

5^3= 125

5^2 = 25

5^1 = 5

Divisibility Rules:

3

sum of digits are divisible by 3

Divisibility Rules:

4

last 2 digits are divisible by 4

Divisible by 6

if its divisible by 2 and 3

Divisible by 8

last 3 digits are divisible by 8

divisible by 9

the sum of the digits are divisible by 9

Rational numbers …

can be written as a fraction or a decimal

irrational numbers are…

non-terminating decimals