GENERAL

Question 1

Key points when multiplying decimals

Answer 1

-Covert into whole numbers and long multiplication

-Remember to add up the decimal points and take them off at the end

Question 2

Key points when deciding dividing decimals

Answer 2

-Divisor must be a whole number

-Use long division process

-Don’t forget to add the .0’s at the end

Question 3

Adding and Subtracting fractions

Answer 3

Both bottom numbers in the fraction must be the same before you can add or subtract.

Question 4

Multiplying fractions

Answer 4

Multiply top numbers and multiply bottom numbers. Use improper fractions or simplify to get final answer

Question 5

Dividing fractions

Answer 5

Turn the second fraction upside down and then use multiplication method

Question 6

How do you turn a whole number into a fraction?

Answer 6

Put it 1/whole number

Question 7

Fractions to percentages

Answer 7

-Convert bottom number to 100 and repeat process to top number

-More complicated use long division process to get decimal and multiply by 100

Question 8

Degrees Celsius into Fahrenheit

Answer 8

Multiply by 1.8 and add 32

Question 9

Degrees Fahrenheit to Celsius

Answer 9

Take away 32 and Divide by 2 then add 10% of final value (rough estimate)

Question 10

Mean, median and mode

Answer 10

Mean is average of all numbers (total divide amount)

Median is middle of all numbers

Mode is most common

Question 11

Key points when simplifying algebra

Answer 11

-Simplify only the same groups

-number and letter can be times and added together (3a * 3b = 9ab)

-simplify in stages so you can keep track

-any negative or positive values stick with that group

Question 12

Key points when expanding brackets

Answer 12

-individually multiply the numbers out from left to right

-add together/simplify answer

Question 13

How would you factorise this?

m(p+q)-n(p+q)

Answer 13

Group the other together and then the inner. (m-n)(p+q)

Question 14

When factorising which letters should go into the first bracket?

Answer 14

The letters that show on all the formula

Question 15

What is Log100 and why

Answer 15

Log 100 = 2

If no base is given it’s assumed to be a 10

Question 16

Three log rules

Answer 16

Log A^n = Nlog x A

Log(AB) = LogA + LogB

Log (A/B) = logA - LogB

Question 17

What is Sin 90

Answer 17

Sine 90 = 1

Question 18

What is sin 30

Answer 18

0.5

Question 19

What is 30 cos?

Answer 19

0.86

Question 20

What is 90 cos

Answer 20

0

Question 21

What is log of a five figure number?

Answer 21

4

Question 22

What is characteristic of log 0.698

Answer 22

-1

Question 23

How to convert decimal to octal?

Answer 23

Use table to convert decimal to binary.

Convert Binary to Octal (4, 2, 1)

Question 24

What is formula for litres to imperial gallons?

Answer 24

Divide by 4.54

Question 25

How would you find out gradient of an equation (I.e 2y + 4x = 15)

Answer 25

Rearrange formula into y = mx + c (M is gradient and C is y intercept)

Question 26

Formula for gradient

Answer 26

Rise over run

Question 27

How many mils is there in a whole circle?

Answer 27

6400 mils

Question 28

How would you work out mils with a given angle?

Answer 28

Proportionally from 360:6400

Question 29

What is one mil?

Answer 29

1/1000 Radians

Question 30

How many degrees in a radian?

Answer 30

57.5

Question 31

Interior angle formula

Answer 31

Interior Angle = ((n-2)180)/n

Question 32

Formula for sun of angles in a polygon?

Answer 32

180(n-2)

Question 33

What is a polygon?

Answer 33

A polygon is a shape with at least 3 straight edges and 3 angles

Question 34

What is a quadrilateral?

Answer 34

A quadrilateral is a shape with 4 sides

Question 35

What is a quadrilateral with 2 parallel sides?

Answer 35

Trapezoid

Question 36

When figuring out binary to decimal what base do you write underneath the decimal number?

Answer 36

Base 10

Question 37

What is 40 CU m

Answer 37

40m^3

Question 38

What’s is meant when in the statement… 12 squared plus the square of 12?

Answer 38

12 squared plus 12 squared (288)

Question 39

What is the square of 36?

Answer 39

36^2 = 1296

Question 40

How is angular velocity measured?

Answer 40

Rad/sec

Question 41

How many pairs of parallel sides does a trapezium have?

Answer 41

1 (it asks PAIRS)!!!

Question 42

The sine of 45 degrees is

Answer 42

Sq root 2/ 1

Question 43

Which trigonometric function is negative for 225

Answer 43

Sine

Question 44

What do you do to convert inches to cm?

Answer 44

Multiply by 2.54!!!!

Question 45

BCD numbering system

Answer 45

2 (Binary-coded decimal)

Question 46

When does a graph cut the vertical axis?

Answer 46

When x = 0

Question 47

Denary number

Answer 47

Decimal number

Question 48

When it’s asking for a answer in Square centimetres what do you do?

Answer 48

Add all together (convert units if necessary) square the number to get final number

Question 49

Formula for quadratic graph

Answer 49

Y = X^2 +bX + c

Question 50

What is the square root of 16?

Answer 50

4 or -4

Question 51

What is 1 to the power of 10

Answer 51

1

Question 52

How else would you write X^-1

Answer 52

1/x^1

Question 53

What is 16 to the power of a half

Answer 53

Square root of 16. So = 4

Question 54

How could you work out the heigh of an equilateral triangle?

Answer 54

Pythagoras theorem

Question 55

What is a supplementary angle?

Answer 55

Adds to 180

Question 56

What is a complimentary angle?

Answer 56

Adds to 90

Question 57

How to convert polar coordinates into rectangular?

Answer 57

Use the appropriate formula from SOH-CAH-TOA that contains known and unknown value. Rearrange the formula to generate answer

Question 58

Litres to pints

Answer 58

1.76

Question 59

What is the y intercept for y+2 = -x?

Answer 59

-2

Question 60

When it asks you for an area in square centimetres, what do you do to the answer of area?

Answer 60

Square it

Question 61

Knots to MPH

Answer 61

1.15

Question 62

What happens when an algebraic equation is expanded out and all cancels each other out (while dividing)

Answer 62

1/1 = 1

Question 63

What size angle has the same ratio for both the sine and cosine?

Answer 63

45

Question 64

Locus points plotted equidistant from central point represent what?

Answer 64

Circumference

Question 65

What’s is meant by a naperian log?

Answer 65

A natural logarithm

Question 66

How is a naperian log denoted?

Answer 66

ln

Question 67

What cube root of -64 and why?

Answer 67

-4 -4x-4=16 16x-4=-64

Question 68

How do the zeros work with significant figures?

Answer 68

Leading zeros do not count Trailing zeros do not count unless decimal

Question 69

What is meant by abscissa? (Graphs)

Answer 69

The distance from y (x)

Question 70

What is meant by ordinate? (Graphs)

Answer 70

Height from x line (y)

Question 71

Values to remember cos and degrees

Answer 71

1, 0, -1 (every 90 degrees)

Question 72

Values to remember sin (and degrees)

Answer 72

0, 1, 0, -1 every 90 degrees