Decrease a number by a percent
Find the percent of the number, then subtract it.
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A website had 20 visitors last week. This week it has 10% fewer. How many visitors does it have this week?
Answer: 18
A website had 40 visitors last week. This week it has 10% fewer. How many visitors does it have this week?
Answer: 36
A tank holds 60 L of water. 10% of the water is used. How many litres are left?
Answer: 54
Tip: Find the percent of the number, then subtract it.
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