Number
What does BIDMAS stand for?
Brackets
Indices
Division
Multiplication
Addition
Subtraction
What do we mean by like terms?
List 3 like terms with the term 3a
Terms that have the same letter/variable
e.g. -2a, a, 4a etc
BONUS WHEEL
What is a Ratio?
How do I write a Ratio?
A way to compare two or more amounts together
e.g. 5 : 3
A triangle? A square? A circle?
Triangle = 180 degrees
Square and circle = 360 degrees
What do we mean by the mode?
What is the mode of the list below?
3, 4, 7, 1, 2, 7, 9
Mode = Most common result therefore the mode = 7
What do we mean by a factor?
What are the factors of 16?
A number that divides into another number, without a remainder
1, 16, 2, 8, 4
What do we mean by substitution?
Find the value of 3a + b when a = 4 and b = 2
Replacing the letter for its given value
3 (4) = 12 + 2 = 14
Share £40 in the ratio 2:3
Explain your working out for each step
Add up parts 2 + 3 = 5
Divide total money by number of parts 40/5 = 8
Multiply 8 by the numbers in the ratio £16, £24
What do we mean by perimeter? If a square has side length 6cm. What is its perimeter with units
6 + 6 + 6 + 6 = 24cm
What do we mean by the Median?
Find the median of the list 4, 9, 3, 5, 1
Median is the middle number of an ordered set of data
1, 3, 4, 5, 9 so median is 4
How do I simplify a fraction?
Simplify 3/12 into its lowest form
Find the highest common factor of both the top and bottom number
1/4
BONUS WHEEL
What do we mean by expanding brackets?
What is the opposite of expanding?
Expand 3 (a + 4)
Multiplying terms
factorising
3a + 12
If 1 litre of petrol costs £1.50 how much will 8 litres of petrol cost?
If 4 people require 200g of flour, how much flour will 20 people need? Write the answer in kg
£1.50 x 8 = £12
200 g x 5 = 1000g = 1kg
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What do we mean by area? What is the formula for the area of a rectangle?
The total amount of space inside a shape
Base x perpendicular height
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What is the Probability of: rolling a 6 on a die?
Rolling an even number?
Rolling a number greater than 6?
1/6
3/6 or 1/2
0
How do I convert a fraction to a percentage?
What is 8/25 as a percentage?
Make the fraction out of 100 and then the top number is your percentage
32 %
What do we mean by solving an equation?
Solve 3x + 1 = 22 , explain your working out
Finding the value of the letter/variable
x = 7
What do we mean by simplifying a ratio?
Simplify the ratio 12:16:20 Explain your working out
Putting the ratio in its lowest form
Highest common factor = 4 therefore 3:4:5
What is the formula for the area of a circle?
If the circle has radius 4cm, find the area of the circle in terms of Pi
Pi x radius squared
Pi x 4 squared = 16 Pi
If I draw a venn diagram for odd numbers and multiples of 3. What numbers will be in the centre of the diagram (using the numbers 1-10)
Odd numbers = 1,3,5,7,9
Multiples of 3 - 3, 6, 9
So in the centre will be 3 and 9
What method do I use to divide fractions?
What is 3/4 divided by 1/2. Give the answer in its simplified form
Keep, change, flip etc
3/4 x 2/1 = 6/4 simplified to 3/2
How do we write the equation of a line?
What does each part stand for/represent?
How do I find each part?
y = mx + c
m = gradient and c = y - intercept
change in y / change in x and intercept- where the line touches the y axis
Jack gets 8 sweets (there are 28 in total)
What is the formula for the circumference of a circle?
Find the circumference of a circle with radius 3cm in terms of Pi.
Pi x diameter
Radius is 3cm so diameter is 3 x 2 = 6cm
Pi x 6cm = 6 Pi cm
How do I draw a line of best fit?
A relationship between two variables
Positive/negative/no correlation
Draw a straight line through the middle of the points in the same direction as the data.