To change a percentage into a decimal you divide by 100 67 100 067 13 100 013 7 100 007 Percentage Increase To find a percentage increase you add the percentage to the original amount ID: 545260
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Slide1
Find examples of the use of percentages in real life situations
To change a percentage into a
decimal
you divide by 100
67% ÷ 100 = 0.67
13%
÷ 100 = 0.137% ÷ 100 = 0.07
Percentage IncreaseTo find a percentage increase you add the percentage to the original amount Increase £150 by 4%Increase £18 by 92%Percentage DecreaseTo find a percentage decrease you takeaway the percentage to the original amount Decrease £140 by 8%Decrease 3Kg by 23%
Write these percentages as decimals60%70%20%45%31%82%14%4%63%2%
LITERACY
RESEARCH
MEMORY
SKILL 1
Use your calculator to find these percentages
28% of 5016% of 25015% of 3007% of 40031% of 72016% of £24024% of £8952% of £6329% of 55cm37% of 7kg
STRETCH
SKILL 2
Percentage
Decimal
Multiplier
Increase
DecreaseSlide2
Find examples of the use of percentages in real life situations
To change a percentage into a
decimal
you divide by 100
67% ÷ 100 = 0.67
13%
÷ 100 = 0.137% ÷ 100 = 0.07
Percentage IncreaseTo find a percentage increase you add the percentage to the original amount Increase £150 by 4% = £156Increase £18 by 92% =£34.56Percentage DecreaseTo find a percentage decrease you takeaway the percentage to the original amount
Decrease £140 by 8% = £128.80Decrease 3Kg by 23% = 2.31KgWrite these percentages as decimals60% = 0.670% = 0.7
20% = 0.2
45% = 0.45
31% = 0.31
82% = 0.82
14%
= 0.144% = 0.0463% = 0.632% = 0.02LITERACYRESEARCHMEMORYSKILL 1
Use your calculator to find these percentages
28% of 50
= 14
16% of 250
=
40
15% of 300
=
45
7% of 400
=
28
31% of 720
=
223.2
16% of £240
=
£38.40
24% of £89
=
£21.36
52% of £63 = £32.7629% of 55cm = 15.95cm37% of 7Kg = 2.59Kg
STRETCH
SKILL 2
Percentage
Decimal
Multiplier
Increase
Decrease