Converting Decimals
Quantities
Increase
Decrease
Real World Problems
100
What is 0.5 as a percentage?
50%
100
What is 10% of 100mL?
10mL
100

What is $20 increased by 10%

$22

100

What is $20 decreased by 10%

$18

100

In the NRL Grand Final Adam Reynolds attempted to kick 3 goals in the first half. This was 50% of his total attempts of the whole game. How many goals did he attempt in total?

6

200
What is 0.24 as a percentage?
24%
200
What is 25% of 80 skittles?
20 skittles
200

What is $550 increased by 10%

$605

200

What is $80 decreased by 25%

$60

200

In the NRL Grand Final the Panthers completed 80% of their sets. They had a total of 35 sets. How many sets did they complete?

28 Sets

300
What is 1.83 as a percentage?
183%
300
What is 75% of 160m?
120m
300

What is 1840mL increased by 20%

2208mL

300

What is $1,200 decreased by 35%

$780

300

This season Chelsea FC have played 60% of their games. They have played 30 games so far. What is the total amount of games they will play?

50 games

400
What is 13.74 as a percentage?
1374%
400
What is 35% of 70kg?
24.5kg
400

What is $4078 increased by 35.5%

$5,526.69

400

What is $320 decreased by 12.5%

$280

400

A rare collectible watch was purchased for $3,200. Over the first year, its value increased by 18.5%. In the second year, it increased again by 26% of the new value.
What is the value of the watch at the end of the second year?

$4,777.92

500
What is 60.258 as a percentage?
6025.8%
500
What is 83.5% of 676g?
564.46g
500

What is 165kg increased by 10%, then increased by 20%

217.8 kg

500

What is $2,500 decreased by 20% and then decreased again by 10%

$1,800

500

A luxury car was originally purchased for $96,000.
In the first year, value decreased by 15%.
In the second year, it decreased again by 22% of its new value.

What is the value of the car after the second year?

$63,648

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