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.
morePractice:
Percent reduction of a number (10% multiples)
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
20% less than 70
Earned ?
Percent 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 - Tax, Tips, and Discounts' Learn online: app.mobius.academy/math/units/percentages_tax_tips_discounts/ |
| Calculate the final number when it changes by a percentage |
| 10% less than 30 |
| 23 |
| 28 |
| 22 |
| 36 |
| 27 |
| 38 |
| Calculate the final number when it changes by a percentage |
| 20% less than 90 |
| 76 |
| 79 |
| 47 |
| 83 |
| 72 |
| 94 |
| Calculate the final number when it changes by a percentage |
| 20% less than 30 |
| 26 |
| 20 |
| 24 |
| 29 |
| 12 |
| 18 |
| Calculate the final number when it changes by a percentage |
| 30% less than 90 |
| 50 |
| 47 |
| 38 |
| 91 |
| 41 |
| 63 |
| Calculate the final number when it changes by a percentage |
| 30% less than 30 |
| 21 |
| 24 |
| 29 |
| 18 |
| 26 |
| 30 |
| Calculate the final number when it changes by a percentage |
| 20% less than 50 |
| 28 |
| 40 |
| 22 |
| 24 |
| 50 |
| 38 |
| Calculate the final number when it changes by a percentage |
| 30% less than 50 |
| 42 |
| 51 |
| 28 |
| 35 |
| 18 |
| 49 |