Yr 7

Question 1

Define prime factor

Answer 1

A factor which is a prime

Question 2

What is the product of primes?

Answer 2

The prime factors that multiply together to make a number eg. 2250 = 2×3×3×5×5×5 or = 2×3²×5³

Question 3

What is HCF?

Answer 3

The highest common factor
HCF of 12 and 8 is 4

Question 4

What is LCM?

Answer 4

Lowest common multiple
LCM of 12 and 8 is 24

Question 5

What is a triangle number?

Answer 5

Numbers in the form ½n×(n+1)
They form a triangle

Question 6

How to divide decimals?

Answer 6

x/y ×(whatever needed to make numerator an integer)

Question 7

How to change from a fraction to a decimal?

Answer 7

Divide numerator by denominator

Question 8

How to change from a decimal to a fraction?

Answer 8

Use place value then simplify

Question 9

How to change from percentage to a fraction?

Answer 9

Write as fraction over 100 then simplify

Question 10

What is an arithmetic sequence?

Answer 10

Formed by adding or subtracting the same amount each time

Question 11

What is a geometric sequence?

Answer 11

Formed by multiplying or dividing by the same amount each time

Question 12

What is the sum of internal angles in a triangle?

Answer 12

180°

Question 13

What is the sum of internal angles in a quadrilateral?

Answer 13

360°

Question 14

Sum of angles around a point?

Answer 14

360°

Question 15

Sum of angles on a straight line?

Answer 15

180°

Question 16

What is an angle smaller than 90° called

Answer 16

An acute angle?

Question 17

What is an angle between 90° and 180° called?

Answer 17

An obtuse angle

Question 18

What is an angle between 180 and 360° called?

Answer 18

A reflex angle

Question 19

What is a 90° angle called?

Answer 19

A right angle

Question 20

What are vertically opposite angles?

Answer 20

\/
-> /\ <- those angles are equal

Question 21

What are alternate angles?

Answer 21

‘Z’angles
Are equal

Question 22

What are corresponding angles?

Answer 22

‘F’angles
Are equal

Question 23

What is an equaliateral triangle?

Answer 23

All internal angles are 60°
All side lengths are equal?

Question 24

What is a scalene triangle?

Answer 24

All angles and side lengths are different

Question 25

What is an isosceles triangle?

Answer 25

Base angles are equal 2 sides are equal length

Question 26

What is a right angled triangle?

Answer 26

- a triangle where one angle is 90° - can be scalene or isosceles

Question 27

Look at your year 7 book for bisectors and constructions I beg

Answer 27

I can't be arsed

Question 28

What is probability?

Answer 28

The chance a given event will occur

Question 29

How is probability expressed?

Answer 29

Between 0 and 1

Question 30

How to calculate probability?

Answer 30

Number of ways an outcome can happen ____________________________________ Total number of possible outcomes

Question 31

What is a face

Answer 31

A side of the shape

Question 32

What is an edge 😰😰😰

Answer 32

The lines of a shape that make up the skeleton

Question 33

What is a vertex?

Answer 33

Where the edges meet (corners)