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Functional skills Maths > Rules > Flashcards

Rules Flashcards

1
Q

What does BIDMAS mean?

A

Brackets, Indices, Division, Multiplication, Add, Subtract

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2
Q

How do you work out the mean?

A

Add up all the numbers and divide the total by the amount of numbers there are

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3
Q

How do you work out the range?

A

The difference between the highest and the lowest number

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4
Q

How do you work out the mode?

A

Find the number used most often

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5
Q

How do you work out median?

A

Put all of the numbers in order then find the middle number if there are two numbers add them together and divide by 2.

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6
Q

How do you work out the estimated mean?

A

First you must find the midpoint of all the numbers on the table, then times the frequency by the mid point (label that row Fx) Add all of numbers on the frequency table up and do the same with Fx row then divide the totals by each other to work out the estimated mean.

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7
Q

How do you convert pounds to other currencies?

A

Multiple the amount of British pounds by the exchange rate.

Example-£500 x $1.13= $565

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8
Q

How do you convert other currencies into pounds?

A

Divide the amount of other currency by exchange rate.

Example- $200/ $1.75= £114.29

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9
Q

What is a prime number?

A

A prime number is number with two factors (The number 1 and the number itself)
2,3,5,7,11,13,17,19,23,29,31

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10
Q

How do you work out speed?

A

Distance/ Time= Speed

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11
Q

How do you work out distance?

A

Speed x Time= Distance

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12
Q

How do you work out time?

A

Distance/ Speed= Time

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13
Q

How do you work out density?

A

Mass/ Volume= Density

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14
Q

How do you work out mass?

A

Volume x Density= Mass

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15
Q

How do you work out volume?

A

Mass/Density= Volume

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16
Q

How do you work out bearings?

A

Bearings are a measure of direction taken from North.
Bearings are always measured in a clockwise direction
Bearings are always written in 3 figures e.g. 85° is 085°

17
Q

How can you work out the percentage of an amount?

A

Total/ 100 x % Amount

18
Q

When would a number be negative?

A

If the signs are different it will make a negative number

19
Q

When would the number positive?

A

If the signs are the same the number would be positive

20
Q

How do you convert M to CM

A

Times M by 100

21
Q

How do you convert CM to M

A

Divide CM by 100

22
Q

How do you convert MM to CM

A

Times CM by 10

23
Q

How do you convert CM to MM

A

Divide MM by 10

24
Q

How do you convert M to MM

A

Times M by 1000

25
Q

How do you convert MM to M

A

Divide MM by 1000

Functional skills Maths (7 decks)

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