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

Level 2

This math topic focuses on calculating the percentage change when a number grows by varying increments, specifically multiples of 10%. It includes a sequence of problems where students must determine the new percentage after an initial amount is increased to a higher value. Each question provides a base percentage calculation (e.g., 10% of a number) and then asks for the percentage change when that number is increased to a specified amount. The goal is to strengthen understanding of percentage increase, an introductory part of learning about percentages. Multiple choice answers are given for each problem to assess understanding.

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% multiples) - Concept Intro Worksheet

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Percent change in a growing number (10% multiples) - Concept Intro
1
If paying $22 for a $20 meal is a 10% tip, what tip percent would paying $30 be?
An svg image showing a math problem
a
30%
b
80%
c
60%
d
40%
e
90%
f
50%
2
If paying $55 for a $50 meal is a 10% tip, what tip percent would paying $95 be?
An svg image showing a math problem
a
90%
b
120%
c
70%
d
80%
e
130%
f
114%
3
If paying $11 for a $10 meal is a 10% tip, what tip percent would paying $14 be?
An svg image showing a math problem
a
40%
b
85%
c
20%
d
50%
e
37%
f
64%
4
If paying $77 for a $70 meal is a 10% tip, what tip percent would paying $105 be?
An svg image showing a math problem
a
20%
b
68%
c
50%
d
80%
e
65%
f
30%
5
If paying $33 for a $30 meal is a 10% tip, what tip percent would paying $57 be?
An svg image showing a math problem
a
90%
b
80%
c
70%
d
100%
e
87%
f
130%
6
If paying $44 for a $40 meal is a 10% tip, what tip percent would paying $56 be?
An svg image showing a math problem
a
10%
b
30%
c
80%
d
60%
e
13%
f
40%
7
If paying $77 for a $70 meal is a 10% tip, what tip percent would paying $98 be?
An svg image showing a math problem
a
49%
b
30%
c
70%
d
60%
e
76%
f
40%
8
If paying $55 for a $50 meal is a 10% tip, what tip percent would paying $70 be?
An svg image showing a math problem
a
79%
b
40%
c
60%
d
80%
e
30%
f
10%