Percent reduction of a number (10% multiples) - Concept Intro

Level 2

This math topic focuses on calculating a percentage reduction of a number using 10% multiples. It introduces and practices the concept of finding new values after reducing the original numbers by specific percentage amounts, such as 10%, 50%, 70%, 90%, and even 100%. Learners are provided with the initial computation of 10% of various numbers and then asked to determine the remaining amount after the reduction. Multiple-choice questions are used to assess understanding of percentage reductions.

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

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Percent reduction of a number (10% multiples) - Concept Intro

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.


Calculate the final number when it changes by a percentage

10% of 20 is 2.

What is 70% less than 20

?

Percent reduction of a number (10% multiples) - Concept Intro Worksheet

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Math worksheet on 'Percent reduction of a number (10% multiples) - Concept Intro (Level 2)'. Part of a broader unit on 'Percentages - Tax, Tips, and Discounts' Learn online: app.mobius.academy/math/units/percentages_tax_tips_discounts/
1
10% of 60 is 6. What is 70% less than 60
Calculate the final number when it changes by a percentage
a
10
b
21
c
18
d
9
e
17
f
14
2
10% of 70 is 7. What is 50% less than 70
Calculate the final number when it changes by a percentage
a
47
b
26
c
35
d
51
e
49
f
23
3
10% of 20 is 2. What is 70% less than 20
Calculate the final number when it changes by a percentage
a
6
b
9
c
4
d
5
e
7
f
8
4
10% of 50 is 5. What is 70% less than 50
Calculate the final number when it changes by a percentage
a
15
b
17
c
20
d
14
e
12
f
11
5
10% of 20 is 2. What is 90% less than 20
Calculate the final number when it changes by a percentage
a
0
b
4
c
1
d
3
e
2
6
10% of 80 is 8. What is 40% less than 80
Calculate the final number when it changes by a percentage
a
34
b
46
c
55
d
48
e
50
f
70
7
10% of 20 is 2. What is 100% less than 20
Calculate the final number when it changes by a percentage
a
0
b
1
c
2
d
3