Primary 6 Mathematics

A number expressed as a fraction of 100

The symbol %

Out of every 100

A fraction, e.g. 12

A decimal, e.g. 0.5

The bottom number in a fraction

The top number in a fraction

From a total of

To change from one form to another

To divide by

To multiply by

To reduce a fraction to its simplest form

Equal in value

The bottom number in a fraction

The top number in a fraction

A number out of 100

Reduction in price, e.g. 20% off

Price before discount

Actual price paid

Money deposited in the bank

Money the bank pays you for using your money

Interest rate per year

How much something grows, as a percentage

How much something drops, as a percentage

How much something grows, as a percentage

Value going down, e.g. car depreciation

The number you multiply by, e.g. 1.25 means +25%

Growth calculated on the new value each year

The original amount

The amount after growth or depreciation

How much something goes up, in percent

How much something goes down, in percent

Money paid to the government

Tax when you buy things

What you paid to buy it

What you sell it for

Money you made

Money you lost

Interest on original principal only

Interest compounds, based on new principal

Comparing two quantities

Number before the ratio sign

Number after the ratio sign

Reduce to simplest form

First term divided by second term

Equal ratios, e.g. 2:3 = 4:6

Two ratios are equal

Ratio of one part to another part

Two equal ratios

Method to solve proportion

Divide by ratio

Sum of all ratio terms

Scale on a map

Equal ratios

Unknown number, usually x

Word problem on ratio

One goes up, other goes up too

One up, other down

Fixed number

Result of division

Result of multiplication

How fast

How long

How far

Scale on a map

Distance on the map

Real distance

The number after the colon

Kilometre, 1 km = 1000 m

Centimetre, 1 m = 100 cm

Scale shown as a line

Scale written as 1:xxxxx

Round shape

Middle point

Distance from centre to edge

Through centre, edge to edge

Perimeter of circle

Tool for drawing circles

Line between two points on circle

Line of symmetry

The ratio C/d ≈ 3.14

Distance around the circle

Through centre, edge to edge

Centre to edge

Half a circle

Total distance around

Wheel

Fixed number

Surface size

Radius × radius

Half circle

Quarter circle

Slice of circle

Square metre, m²

Square centimetre, cm²

π ≈ 3.14

How fast

How far

How long

Kilometres per hour

Metres per second

Average speed over whole journey

Math rule

Measurement unit

How far

How long

When it leaves

When it arrives

Schedule

30 minutes

15 minutes

Distance left

Overall speed for whole journey

Whole distance

Whole time

Travelling to

Coming back

Trick question

Type of average for speeds

Whole trip

Three-dimensional shape

Flat surface

Where two faces meet

Corner point

Box shape

Equal-sided box

Can shape

Ice cream cone shape

Ball shape

Space taken up

cm³

m³

Litre, L

Millilitre, mL

How much it can hold

How long

How wide

How tall

All outer faces added up

Flat surface

Wrapping paper

Paint

Wall

Ceiling

Floor

cm²

How likely something happens

Something that happens

Equal chance

Singular of dice

Coin

Result

Cannot happen

Must happen

Expected number of times

Number of times you try

Put back after each pick

Don't put back

Can't happen at same time

Guess what will happen

Weather forecast

Lucky draw

Decimal number

The dot .

110 place

1100 place

11000 place

Add

Subtract

Multiply

Divide

dp

Number being multiplied

Answer of multiplication

Add zeros

Mental math

The dot in a decimal, e.g. in 0.64; its position depends on counting decimal places

A number with no decimal part, e.g. 32; first multiply as whole numbers: 32 × 2 = 64

To roughly check an answer, e.g. 2.4 × 0.15 is about 2 × 0.15 = 0.3

Number you divide by

Number being divided

Answer of division

Remainder

Long division

The dot; the quotient's decimal point aligns with the dividend's, e.g. 6.4 ÷ 2 = 3.2

Multiply both divisor and dividend by 10 or 100 so the divisor becomes whole, e.g. 7.2 ÷ 0.4 = 72 ÷ 4

To divide exactly with no remainder, e.g. 72 ÷ 4 = 18

Word problem

Change (money back)

Unit conversion

Metre, m

Centimetre, cm

Kilogram, kg

Gram, g

Concentration

Statistics

Data

How many times

Frequency table

Survey

Category

Pie chart

Bar chart

Tally mark

Average (sum ÷ count)

Middle value

Most frequent

Average

Total

Outlier

Arrange in order

How many times

Pie chart

Bar chart

Sector

Proportion

Angle

Protractor

Scale

Compare

Analysis

Conclusion

Survey

Data

Popular

Misleading

Decision

Compare

Equation

Unknown

Solve

Variable

Balance

Both sides

Equal

Solution

Solve

Isolate

Substitute

Check

Unknown

Equation

Both sides

Operation

Word problem

Translate

Unknown

Age

Gift

Book

Check

Solve