Deck 1 Flashcards
The Lowest common multiple of 24 and 60 is
120
the highest common factor of 48 and 64 is
16
find the prime factors of 42
2 x 3 x 7
is 8 a factor of 160?
yes
3 3/4 * 1/2
15/8
The temperature in Rome at 9C is 12C warmer than in London. What is the temperature in London?
9-12 = -3C
The time difference between London and New York is -5 hours. The time difference between New York and San Francisco is -3 hours. If it is 11:32 in London, what is the time in San Francisco?
03:32
The time difference between London and Beijing is +8hours. It is 09:15 on Tuesday in Beijing. What is the time and day in London?
Tuesday 01:15
70 = ?
1
If you add together two consecutive integers is the result odd or even?
odd
what is an integer?
a whole number
what is the smallest prime number?
2
how many millimetres in a metre
1000
as a fraction, what is 73%
73/100
what is 0.375 as a percentage?
37.5%
what is 0.82 as a fraction in its lowest terms?
41/50
as a decimal, what is
1 + 4/5
1.8
to 2 s.f. what is
1555
1600
to 2 s.f. what is
1.009
1.0
the zero is important!
as a decimal, what is
7/9
0.77777777…
what must an equation have?
an equals sign
what does an expression not have?
an equals sign
what is this an example of
x2 + 3x - 6 = 3
a quadratic equation
simplify
4 a4 / a-2
4 a6
a rectangle has side lengths 3a and 7a. What are its area and perimeter
area = 3a * 7a = 21a2
perimeter = 20a
An apple costs £A and a banana costs £B.
What is the cost of 5 apples and 3 bananas
£5A + 3B
area of a triangle =
1/2 * base * height
On a graph, in which quadrant is (-3, -1)
3rd
top right is first quadrant, the go anticlockise
which equation is a straight line?
y = 3x + 1
x2 + y2 = 1
y = 3x2 + 2
the first
(the 2nd is a circle and the third is quadratic)
