Probability as a Fraction, Decimal and Percent
Written by Adi Ackerman, Head Teacher
"Probability as a Fraction, Decimal and Percent" is written for 8th Grade (Ages 13-14). A 7th grader who is already steady on probability can use it too, and an older student can use it as a short review.
8th grade math worksheet: write 12 probabilities as a fraction, decimal and percent, from a marble bag to 7 of 200 raffle tickets. Answer key included. Part of our simple probability collection.
How do I use this worksheet?
Start with Probability of Simple Events before the fraction, decimal and percent sheet. Use the Probability Scale Sort and the Event Probability Review as checks after the rest.
What students will practice
- Students will write each probability as a fraction in simplest form, a decimal and a percent.
- Students will round repeating decimals to the nearest thousandth and percents to the nearest tenth.
- Students will find probabilities for bags, spinners, numbered tiles, candy jars and a raffle.
Curriculum Links
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FAQ
How do I use this simple probability worksheet?
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Start with Probability of Simple Events before the fraction, decimal and percent sheet. Use the Probability Scale Sort and the Event Probability Review as checks after the rest.
What does this worksheet teach?
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Write 12 probabilities as a fraction, decimal and percent, from a marble bag to 7 of 200 raffle tickets. The directions on the page read: Write each probability as a fraction in simplest form, a decimal and a percent. If a decimal repeats, round it to the nearest thousandth and the percent to the nearest tenth. The page opens with a worked example, and an answer key is included.
Can I use this simple probability worksheet for homeschool or classroom?
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Yes, both. We made it for 8th grade probability, and it works the same at home or at school. At home, a student can work through it alone and then go over it with you, which shows quickly what is solid and what needs another look. In class it works as independent practice, homework or a warm-up, and you can print one copy or a full set.
What are mutually exclusive events?
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Mutually exclusive events cannot happen at the same time, like rolling an even number and rolling a 5. To find P(A or B), add the two probabilities. The Mutually Exclusive Events sheet practices this with fractions, decimals and percents.
How do you find P(A or B) when events overlap?
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Add P(A) and P(B), then subtract P(A and B) so the shared outcomes count once. The Overlapping Events sheet uses Venn diagrams of pets, groceries and clubs to show the overlap.
What is the probability of an opposite event?
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The probability that an event does not happen is 1 minus the probability that it does. If P(a hit) is 0.28, then P(not a hit) is 0.72.
Are answer keys included for these sheets?
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Yes. Each of the 10 simple probability sheets comes with an answer key.
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Worksheet Details
| Grade | 8th Grade |
| Subject | Math |
| Topic | Probability |
| Pages | 1 page |
| Difficulty | Medium |
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