Numerical

Question 1

NUMBERS

Answer 1

-

Question 2

Ordering- ascending =

Answer 2

Increase

Small to big

Question 3

Ordering - descending =

Answer 3

Decrease

Big to small

Question 4

Composing & decomposing forms?

Answer 4

Standard and expanded

Question 5

Rounding decimals - 3.1416

Ten
Hundredth
Thousandth

Answer 5

Ten= 3.1
Hundredth = 3.14 
Thousandath = 3.142 
Ones = 3

Question 6

Rounding significant numbers

Answer 6

Count all numbers asked then round

If have 0’s miss the 0 and count significant numbers after

Question 7

What u know

Answer 7

Addition
Subtraction
Multiplication
Division - the divisor always outside the box

Question 8

Positive and negative numbers:

Answer 8

++=+
+-=-
-+=+
- - = -

Question 9

Bodmas?

Answer 9

Brackets 
Orders (power of roots etc)
Division 
Multiplication 
Addition 
Subtraction

Question 10

% to decimal ?

Answer 10

Decimal \ 100 = percentage
Or move two to the left

8.5%=0.085

Question 11

% to fraction ?

Answer 11

Always do it out of 100 (dependant on how many numbers ) and then simplify if u can

11/100

62.5 = 625/1000 then simplify = 5/8

Question 12

Decimal to %

Answer 12

Decimal x 100 = percent

Move 2 to right and put % sign

Question 13

Decimal to fraction

Answer 13

Decimal / 1

Then multiply both by 10 for every number after decimal point

Simplify and reduce fraction
0.75/1 x 100 = 75/100 = 3/4

Question 14

Fraction to decimal

Answer 14

Do it as normal long division

Top in box and bottom outside

Question 15

Fraction to percentage

Answer 15

Long division x 100 and % sign

Question 16

Items of a fraction

Answer 16

Numerator and denominator

Question 17

How can you simplify fractions ?

Answer 17

Prime numbers

Greatest common factor

Question 18

What are prime numbers?

Answer 18

2,3,5,7,11,13,17,19,23,29,31,37

Question 19

What is a greatest common factor?

Answer 19

Large no into both numbers of fraction

Question 20

Adding fractions

Answer 20

Ensue denominator both the same
If not - multiply denominators
Add too as usual
Simplify

Question 21

PERCENTAGES

Answer 21

Important

Question 22

Different use for perctanges

Answer 22

% difference = looking for average
% change = looking for increase or decrease
% error =looking for over value or undervalued

Question 23

What to remember for all different percentage methods

Steps 1

Answer 23

1. Subtract values from one another first

Question 24

Step 2 for percentage methods

Answer 24

% change = divide by old value
% error = divide by exact value
% difference = divide by average of values

Question 25

Step 3 for percentage methods?

Answer 25

% change = + is an increase , - is a decrease % error = ignore minus sign but if you do have one keep if u want to know value over or under % difference = ignore minus sign not important

Question 26

Step 4

Answer 26

Always convert to % = x 100 and add sign

Question 27

Format for % change

Answer 27

New value - old value / old value x 100 to see percentage increase Or New / old

Question 28

Something to note for percentage change

Answer 28

If the new figure is greater than old - you are looking at the percentage increase If the old figure is greater than the new - you are looking for the percentage decrease

Question 29

% decrease?

Answer 29

Old - new/ old x 100

Question 30

How to find the average normally

Answer 30

Values / amount of values there

Question 31

Format for % difference?

Answer 31

1st value -2nd value / 1st value - 2nd value / 2 x 100

Question 32

Format for % error

Answer 32

Approx value - exact value / exact value x 100 Use sign to see if over or under if needed

Question 33

How to find increase and decrease in a value ? Not same as percentage increase or decrease

Answer 33

Decimal x value E.g 0.25 x 120 = 30 Then either plus or minus from the original value Or For increase = 1.115 to be quick x the figure

Question 34

Finding a percentage amount of a cost that already exists? Finding percentage amount within this figure

Answer 34

Value / decimal E.g 15% of 180 180/ 0.15 Or 15x 180 / 100

Question 35

Finding percentage amount - other half that already exists

Answer 35

E.g 56/100 = 10,120 1- 0.56 = 0.44 10,120 / 0.44 = finds the amount within this figure

Question 36

Simply finding the percentage of values only Values as a percentage

Answer 36

Smaller Value / bigger value

Question 37

Square roots ?

Answer 37

1,4,9,16,25,36,49,64,81,100,121,144,

Question 38

Ratios?

Answer 38

Have the ratio Simplify it Ratio can change into a fraction too

Question 39

1 ration into the amount needed

Answer 39

You times the ratio of 1 amount by the amount needed and simplify

Question 40

Part to part ratio | Part to whole

Answer 40

Boys : 2:3 | All : 2:5