This math topic focuses on calculating percentage change, specifically focusing on practicing a 10% growth situation. Students are provided with scenarios where an initial number is increased by 10%, and they must calculate the percentage by which the number has been increased. Each problem involves simple arithmetic and understanding the concept of 10% growth and its implications on the new value, reinforcing an understanding of basic percentages, a foundational element in introductory percentage studies.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

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Percent change in a growing number (10%) - Concept Intro Worksheet

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Percent change in a growing number (10%) - Concept Intro
1
What is the tip percent if you pay $99 for a $90 meal? Hint, find the change in $ first!
An svg image showing a math problem
a
10%
b
20%
c
-20%
d
50%
e
0%
f
40%
2
What is the tip percent if you pay $55 for a $50 meal? Hint, find the change in $ first!
An svg image showing a math problem
a
10%
b
7%
c
0%
d
20%
e
50%
f
40%
3
What is the tip percent if you pay $88 for a $80 meal? Hint, find the change in $ first!
An svg image showing a math problem
a
-20%
b
20%
c
40%
d
10%
e
26%
f
18%
4
What is the tip percent if you pay $77 for a $70 meal? Hint, find the change in $ first!
An svg image showing a math problem
a
30%
b
40%
c
10%
d
50%
e
11%
f
-20%
5
What is the tip percent if you pay $88 for a $80 meal? Hint, find the change in $ first!
An svg image showing a math problem
a
0%
b
40%
c
10%
d
30%
e
-20%
f
20%
6
What is the tip percent if you pay $66 for a $60 meal? Hint, find the change in $ first!
An svg image showing a math problem
a
30%
b
0%
c
22%
d
15%
e
10%
f
6%
7
What is the tip percent if you pay $66 for a $60 meal? Hint, find the change in $ first!
An svg image showing a math problem
a
0%
b
10%
c
-20%
d
1%
e
40%
f
28%
8
What is the tip percent if you pay $99 for a $90 meal? Hint, find the change in $ first!
An svg image showing a math problem
a
30%
b
50%
c
-20%
d
10%
e
20%
f
0%