Maths Flashcards

1
Q

How do you calculate the perimeter of a shape

A

Measure/add up the around outside of shape

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is a prism?

A

A 3D shape that when sliced into equal lengths, each piece is the same shape and size

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q
How many sides does a:
Triangle
Octagon
Quadrilateral
Pentagon
Hexagon 
Decagon
A
3
8
4
5
6
10
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is a seven sided shape called?

A

Heptagon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What does BIDMAS or BODMAS stand for?

What do you use it for?

A

Brackets, Indices, Division, Multiplication, Addition, Subtraction
(Indices=Order)
Used to determine the order of calculations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How many months in a year?

A

12

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Which months have 31 days?

A
January
March
May
July
August
October
December
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Which months have 30 days?

A

April
June
September
November

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

How many days does February have?

A

28 days

29 in a leap year

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the 4 suits of cards?

A

Spades
Diamonds
Clubs
Hearts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the probability of picking an ace from a pack of cards

A

4/52 = 1/13

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the formula to calculate the area of a triangle

A

0.5 * length * height

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the formula to calculate the area of a rectangle/square

A

Length*width

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Name the 5 types of triangle

A

Equilateral - 3 equal sides and angles
Isosceles - 2 equal sides and equal angles opposite these sides
Right-angled - one angle of 90 degrees
Obtuse - one angle greater than 90 degrees
Scalene - 3 sides of different lengths and 3 different angled

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is a line of symmetry?

A

A line which splits a shape into halves that are reflections of each other

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

How many lines of symmetry do the following shapes have:

Isosceles triangle
Equilateral triangle
Circle

A

Isosceles=1
Equilateral = 3
Circle = unlimited

17
Q

How many lines of symmetry do the following shapes have:

Square
Rectangle
Pentagon
Octagon

A
Square = 4
Rectangle = 2
Pentagon = 5
Octagon = 8
18
Q

What is rotational symmetry?

A

If a shape is rotated about its central point and still fits its original outline.

19
Q

What order of rotational symmetry do the following shapes have:

Equilateral triangle
Square
Rectangle
Isosceles triangle
Regular hexagon
A
Equilateral triangle = 3
Square = 4
Rectangle = 2
Isosceles triangle = 1
Regular hexagon = 6
20
Q

What is the formula to calculate the volume of a cube?

A

Lengthwidthheight

21
Q

What are the first 5 numbers in the sequence of cube numbers?

A

1,3,9,27,64,125

22
Q

How often do leap years occur?

How do you work out which years are leap years?

A

Every 4 years
If the last 2 digits of the year are halved, and the answer is even, then the year is a multiple of 4 and therefore a leap year.

23
Q

How many degrees do the angles of a triangle add up to?

A

180 degrees

24
Q

What is the formula to calculate the volume of a cube?

A

Lengthwidthheight

25
Q

What are the first 5 numbers in the sequence of cube numbers?

A

1,3,9,27,64,125

26
Q

How often do leap years occur?

How do you work out which years are leap years?

A

Every 4 years
If the last 2 digits of the year are halved, and the answer is even, then the year is a multiple of 4 and therefore a leap year.

27
Q

How many degrees do the angles of a triangle add up to?

A

180 degrees

28
Q

How can you work out if a shape has been reflected in a diagonal line?

A

Check if it has been reflected in the vertical line and then rotated either 90 degrees clockwise or anticlockwise.

29
Q

What are the first 5 numbers in the sequence of square numbers?

A

1,4,9,16,25

30
Q

How do you divide two proper fractions?

E.g. 2/3 divided by 2/5.

A

Change the divide to multiply and turn the second fraction upside-down. Muliply numerators together and denominators together

31
Q

How many pairs of perpendicular faces does a cube have?

A

12

32
Q

What must you do to add or subtract fractions with different deniminators

A

Find the common denominator, then add/subtract the numerators

33
Q

How many kg in a tonne?

A

1000 kg