Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Year 9 Maths Study

Year 9 Half Yearly Exams Study

QuestionAnswer
When we add, subtract or multiply whole numbers, the answer is always a ... number. Whole
We can compare the sizes of fractions if they have a ... denominator. Common
When adding or subtracting fractions, the ... must be the same. Denominators
When the numerator and denominator of a fraction cannot be divided exactly by the same whole number, the fraction is in ... form. Simplest
When multiplying fractions, multiply the numerators and ... the denominators. Multiply
When multiplying mixed numerals, first change them to ... fractions. Improper
To obtain the reciprocal of a number, write the number as a fraction and turn it ... down. Upside
To divide by a fraction, multiply by its ... Reciprocal
Quantities can be compared by expressing one quantity as a fraction of another ... Quantity
Decimal places are based on powers of ... Ten
The term 'decimal places' refers to the number of ... after the decimal point in a decimal number. Digits (or Figures)
Zeros at the end of a whole number or at the beginning of a decimal are ... significant. Not
Zeros between non-zero digits or zeros at the end of a decimal ... significant. Are
Some decimals repeat or ... Other decimals terminate. Some decimals do neither. Recur
To convert either a fraction or a decimal to a percentage, multiply by ... 100%
To convert a percentage to a decimal, divide by ... 100
To convert a percentage to a fraction, divide by 100 then ... (if possible) Simplify
The unitary method involves finding the value of ... part or item when given the value of several parts or items. One
Add and subtract ... ... only Like terms
Instead of writing 8 x b x d, we write ... 8bd
In an algebraic expression, we can replace the variables with numbers to obtain a value for the expression. This process is called ... Substitution
3(4+7) can also be written as ... 3 x (4+7)
When expanding an expression, each term inside the brackets is ... by the term outside the brackets. Multiplied
A factor is a number or algebraic expression that divides ... into another whole number or algebraic expression. Evenly
Factorising is the ... of expanding. Reverse
If the denominators are not the same when adding or subtracting fractions, then we must convert them so that the fractions have a ... denominator. Common
When you are multiplying and dividing fractions, the denominators ... ... need to be the same. Do not
When multiplying fractions, cancel any common factors, then ... numerators and denominators. Multiply
When dividing by a fraction, multiply by its ... Reciprocal
One kilometre = ... m 1000
One metre = ... cm 100
One centimetre = ... mm 10
One tonne = ... kg 1000
One kilogram = ... g 1000
One gram = ... mg 1000
One hectare = ... metres squared 10000
One metre squared = ... centimetres squared 10000
One metre cubed = ... centimetres cubed 1000000
One megalitre = ... kilolitres 1000
One kilolitre = ... litres 1000
One litre = ... millilitres 1000
One centimetre cubed = ... millilitre 1
One metre cubed = ... litres 1000
One day = ... hours 24
One hour = ... mins 60
One hour = ... seconds 3600
One minute = ... seconds 60
A squared + B squared = ... squared C
Perimeter = The sum of all ... of a plane shape Sides
The perimeter of a circle is called the ... Circumference
Circumference = ... Pie x diameter
A relationship between two variables x and y whose graph is a striaght line is called a ... relationship. Linear
The expression of a linear relationship as an algebraic formula is called a ... equation. Linear
Gradient = Vertical rise divided by ... Horizontal run
Data that is collected is either categorical or ... Quantitative
Categorical data is information that can be put into different ... Categories
Quantitative data is information that is represented by numbers. This data can be discrete or ... Continuous
Discrete data is obtained through counting. "In-between" values are not ... Possible
Continuous data is obtained through ... The values for this type of data are on a smooth continuous scale. Measuring
A histogram is a graph that uses the height of the column to show the ... of each score. Frequency
An easy way of displaying a small set of scores is to draw a number line with dots or crosses drawn above the numbers to ... the scores. Represent
Range = highest score ... lowest score Minus
Mean = Sum of scores ... number of scores Divided by
The median is the ... score or can be the average of the two middle scores. Middle
The mode is the score that occurs most ... Often
Created by: shanec
Popular Math sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards