This math topic focuses on calculating the decrease of a number by a certain percentage, specifically in multiples of 10%, such as 10%, 20%, and 30%. The problems ask to compute the final value after reducing given numbers by these specified percentages. The questions are a part of an introductory unit on percentages and are designed to develop computational skills involving basic reductions by percentages. Each problem is presented with multiple choice answers, enhancing problem-solving abilities in percentage calculations.
Work on practice problems directly here, or download the printable pdf worksheet to practice offline.
morePercent reduction of a number (10% multiples) Worksheet
| Math worksheet on 'Percent reduction of a number (10% multiples) (Level 1)'. Part of a broader unit on 'Percentages - Intro' Learn online: app.mobius.academy/math/units/percentages_intro/ |
1
| Calculate the final number when it changes by a percentage |
| 10% less than 30 |
a
| 27 |
b
| 38 |
c
| 23 |
d
| 22 |
e
| 36 |
f
| 28 |
2
| Calculate the final number when it changes by a percentage |
| 30% less than 40 |
a
| 36 |
b
| 38 |
c
| 21 |
d
| 31 |
e
| 28 |
f
| 25 |
3
| Calculate the final number when it changes by a percentage |
| 10% less than 100 |
a
| 59 |
b
| 99 |
c
| 90 |
d
| 126 |
e
| 108 |
f
| 113 |
4
| Calculate the final number when it changes by a percentage |
| 10% less than 20 |
a
| 17 |
b
| 12 |
c
| 16 |
d
| 14 |
e
| 18 |
f
| 11 |
5
| Calculate the final number when it changes by a percentage |
| 20% less than 70 |
a
| 42 |
b
| 64 |
c
| 56 |
d
| 28 |
e
| 76 |
f
| 48 |
6
| Calculate the final number when it changes by a percentage |
| 10% less than 90 |
a
| 105 |
b
| 45 |
c
| 57 |
d
| 53 |
e
| 81 |
f
| 101 |
7
| Calculate the final number when it changes by a percentage |
| 30% less than 20 |
a
| 20 |
b
| 17 |
c
| 14 |
d
| 8 |
e
| 13 |
f
| 18 |