Chapter 1 - Number Flashcards
1
Q
what are integers and rational numbers
A
Whole numbers
fractions, integers and terminating decimals
2
Q
what is bodmas
A
brackets
Other
Division, Multiplication
Addition, subtraction
3
Q
what is a multiple
A
n x another number
4
Q
what is a factor
A
n is divisible by number
5
Q
what is lcm and hcf
A
lcm = smallest number that divides by all hcf = biggest number that will divide into all numbers
6
Q
how do you multiply fractions
A
get same denominator and multiply numerators
7
Q
how do you divide fractions
A
keep the first number, flip the second once, change divide to multiply
8
Q
how do you find the fraction of a recurring decimal
A
let r = 1.6 recurring 10r = 1.666666666 100r = 16.6666666 so 90r = 15 r = 15/90 = 1/6
