This math topic focuses on calculating the percentage change when a number decreases, specifically using multiples of 5%. The exercises involve determining the percentage by which a given number shrinks to a new value in various scenarios. Each problem provides multiple choice answers for the learners to select from, enhancing their understanding of how to compute percentage decreases in practical contexts.
Work on practice problems directly here, or download the printable pdf worksheet to practice offline.
Practice:
Percent change in a shrinking number (5% multiples)
Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.
What percent did the number change by?
60 shrinks to 21
Percent change in a shrinking number (5% multiples) Worksheet
| Math worksheet on 'Percent change in a shrinking number (5% multiples) (Level 2)'. Part of a broader unit on 'Percentages - Advanced' Learn online: app.mobius.academy/math/units/percentages_advanced/ |
1
| What percent did the number change by? |
| 20 shrinks to 13 |
a
| -55% |
b
| -59% |
c
| -62% |
d
| -35% |
e
| -5% |
f
| -15% |
2
| What percent did the number change by? |
| 100 shrinks to 15 |
a
| -80% |
b
| -112% |
c
| -106% |
d
| -97% |
e
| -65% |
f
| -85% |
3
| What percent did the number change by? |
| 80 shrinks to 4 |
a
| -95% |
b
| -110% |
c
| -90% |
d
| -65% |
e
| -100% |
f
| -44% |
4
| What percent did the number change by? |
| 20 shrinks to 5 |
a
| -65% |
b
| -60% |
c
| -42% |
d
| -80% |
e
| -75% |
f
| -85% |
5
| What percent did the number change by? |
| 100 shrinks to 5 |
a
| -119% |
b
| -92% |
c
| -65% |
d
| -38% |
e
| -95% |
f
| -110% |
6
| What percent did the number change by? |
| 100 shrinks to 25 |
a
| -75% |
b
| -90% |
c
| -18% |
d
| -65% |
e
| -45% |
f
| -95% |
7
| What percent did the number change by? |
| 80 shrinks to 12 |
a
| -65% |
b
| -40% |
c
| -85% |
d
| -79% |
e
| -60% |
f
| -105% |