These are all important maths facts that will help you in your maths lessons. You will learn these facts in school and practice them at home.

So come on let’s get practising!

Multiplication Facts
To multiply whole and decimal numbers by ten and a hundred.
Multiplying by 10 the digits move one place to the left.
For example: 34.5 x 10 = 345
hundreds / tens / units / ● / tenths
3 / 4 / ● / 5
3 / 4 / 5 / ●
Multiplying by 100 the digits move two places to the left.
For example: 9.9 x 100 = 990
hundreds / tens / units / ● / tenths
/ / 9 / ● / 9
9 / 9 / 0 / ●
/ Division facts
To divide whole and decimal numbers by ten and a hundred.
Dividing by 10 the digits move one place to the right.
For example: 123 ÷ 10 = 12.3
Hundreds / tens / units / ● / tenths
1 / 2 / 3 / ●
1 / 2 / ● / 3
Dividing by 100 the digits move two places to the right.
For example: 712÷ 100 = 7.12
hundreds / tens / units / ● / tenths / hundredths
7 / 1 / 2 / ●
7 / ● / 1 / 2
Measurement
Length
5mm = ½cm
10mm = 1cm
25cm = ¼m
50cm = ½m
75cm = ¾m
100cm = 1m
1000m = 1km
Mass
250g = ¼ kg
500g = ½ kg
750g = ¾kg
1000g = 1 kg
Capacity
250ml = ¼ litre
500ml = ½ litre
750ml = ¾litre
1000ml = 1 litre / Fractions, Decimals & Percentages
1 tenth =  = 0.1 = 10%
A quarter = ¼ = 0.25 = 25%
A half = ½ = 0.5 = 50%
Three quarters= ¾ = 0.75 =75%
Time
Read the time on a digital and 12 hour clock
Know that 10.45am is read out as ‘ten forty-five am’ and ‘quarter to eleven in the morning’
Know the following facts:
  • 60 seconds = 1 minute
  • 60 minutes = 1 hour
  • 15 minutes = quarter of an hour
  • 30 minutes = half an hour
  • 45 minutes = three quarters of an hour
  • 7 days = a week
  • 12 months = a year