Deck 1 Flashcards

1
Q

The Lowest common multiple of 24 and 60 is

A

120

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2
Q

the highest common factor of 48 and 64 is

A

16

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3
Q

find the prime factors of 42

A

2 x 3 x 7

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4
Q

is 8 a factor of 160?

A

yes

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5
Q

3 3/4 * 1/2

A

15/8

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6
Q

The temperature in Rome at 9C is 12C warmer than in London. What is the temperature in London?

A

9-12 = -3C

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7
Q

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?

A

03:32

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8
Q

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?

A

Tuesday 01:15

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9
Q

70 = ?

A

1

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10
Q

If you add together two consecutive integers is the result odd or even?

A

odd

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11
Q

what is an integer?

A

a whole number

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12
Q

what is the smallest prime number?

A

2

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13
Q

how many millimetres in a metre

A

1000

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14
Q

as a fraction, what is 73%

A

73/100

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15
Q

what is 0.375 as a percentage?

A

37.5%

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16
Q

what is 0.82 as a fraction in its lowest terms?

A

41/50

17
Q

as a decimal, what is

1 + 4/5

A

1.8

18
Q

to 2 s.f. what is

1555

A

1600

19
Q

to 2 s.f. what is

1.009

A

1.0

the zero is important!

20
Q

as a decimal, what is

7/9

A

0.77777777…

21
Q

what must an equation have?

A

an equals sign

22
Q

what does an expression not have?

A

an equals sign

23
Q

what is this an example of

x2 + 3x - 6 = 3

A

a quadratic equation

24
Q

simplify

4 a4 / a-2

A

4 a6

25
Q

a rectangle has side lengths 3a and 7a. What are its area and perimeter

A

area = 3a * 7a = 21a2

perimeter = 20a

26
Q

An apple costs £A and a banana costs £B.

What is the cost of 5 apples and 3 bananas

A

£5A + 3B

27
Q

area of a triangle =

A

1/2 * base * height

28
Q

On a graph, in which quadrant is (-3, -1)

A

3rd

top right is first quadrant, the go anticlockise

29
Q

which equation is a straight line?

y = 3x + 1

x2 + y2 = 1

y = 3x2 + 2

A

the first

(the 2nd is a circle and the third is quadratic)

30
Q
A