Math practice for 13 year olds
Middle School Math Practice: Grade 8 Workbook. 8th grade is typically attended by students who are 13–14 years old, marking their final year of middle school (or junior high) before transitioning to high school (9th–12th grade).In 8th grade in the U.S., students typically study:
1. Algebra – Solving linear equations and inequalities, systems of equations, and introduction to functions (linear and quadratic).
2. Geometry – Pythagorean theorem, transformations (translations, reflections, rotations), and volume/surface area of 3D shapes.
3. Statistics & Probability – Analyzing scatter plots, linear models, and basic probability (independent/dependent events).
4. Number Sense – Working with exponents, scientific notation, and irrational numbers (like √2 or π).
Some states also introduce early pre-algebra or foundational algebra concepts to prepare for high school math.
Number of problems found: 8422
- Amusement park.
A group of friends wants to go to the amusement park. They have $311.50 to spend on parking and admission. Parking is $16.75, and tickets cost $32.75 per person, including tax. Write and solve an equation which can be used to determine the number of peopl - A river
A river is flowing at a speed of 5 km/h. A man can swim 20 km/h in still water. The man starts swimming from A to B, distance 30 km. After reaching B the man turn back and stop swimming after reaching point A . Find the total time. - Circular track 3
Henry and Margo both began traveling around a circular track. Henry is riding his bike, and Margo is walking. It takes Henry 7 minutes to make it all the way around, and Margo takes 12 minutes. How many minutes will pass until they meet at the starting li - Hiking trails
There are 12 thousands kilometers of hiking trails in a national park. Each trail is rated for difficulty: 3/8 of the trails are rated easy, 1/6 are rated moderate, 1/4 are rated hard, and 5/24 are rated difficult. What fraction of the trails are rated ea - Stefan
Stefan sells Jin a bicycle for $147 and a helmet for $18. The total cost for Jin is 150% of what Stefan spent originally to buy the bike and helmet. How much did Stefan spend originally? How much money did he make by selling the bicycle and helmet to Jin? - Nely and chocolate
Three friends share a chocolate bar. Polly ate 2/5 of the chocolate bar, Kim ate 3/7 of the chocolate bar and Nely ate the rest. What fraction of chocolate bar ate Nely? - Bags of sugar
After I had used 1/5 of a bag of sugar and then used 1/4 of what was left, I had 60 g of sugar remaining. How much did I start with? - Enlarged photo
A photograph has been enlarged by a scale factor of 1.75. If the enlarged photo has an area of 675cm squared, what is the area of the original photo? - Sauce in the bowl
I cook 8 cups of pasta. Then I divided the pasta equally between 5 bowls. I then pour 1 1/4 of sauce into each bowl. How many of pasta and sauce are in each bowl? - Combined work
Latoya works mowing lawns and babysitting. She earns $8.60 an hour for mowing and $7.60 an hour for babysitting. How much will she earn for 6 hours of mowing and 1 of babysitting. - Jerseys
The football team has a total of 20 jerseys. There are 4 medium-sized jerseys. What percent of the jerseys are medium-sized jerseys? - Trail mix
You have 12 cups of granola and 8 1/2 cups of peanuts to make trail mix. What is the greatest number of full batches of trail mix you can make? Each batch of trail mix requires 2 3/4 cups of granola and 1 1/3 cups of peanuts. - Isosceles right triangle
If I have a triangle with a right angle 24 inches long on each side of the right angle what is the length of the third side? - The ratio 22
The ratio of two numbers is 5 : 4 and their LCM is 810. Find the sum of numbers . - A,B and
A, B and C invested a capital in a ratio of 1/3:1/4:1/5. After 4 months A withdraws half of his capital. If the yearly profit is Rs 8470, find the share of A . - Velocity ratio 2
The ratio between the rates of walking of A and B is 2:3. If the time taken by B to cover the certain distance is 36 min, then, find the time taken by A - Spending in 3 days
Jesse spends 1/2 of his pocket money on Monday. On Tuesday, he spends 2/3 of what is left. On Wednesday, he spends 1/4 of what remains. What fraction of the pocket money does he have left? - Horses equation
Some men and equal number of horses are going somewhere. Half the sitting on the horses and rest are walking with the horses. If the number of feet on the ground is 70, how many horses are there? - Triangle 97
Triangle DEF with Ê=40°, F=90° EF = 45mm. Measure DE. - Negative degrees Celsius
From 1:00 a.m. to 10:00 a.m., the temperature dropped 7°C. From 10:00 a.m. until 4:00 p.m., the temperature then rose 15°C. From 4:00 p.m. to 10:00 p.m., the temperature then dropped 4°C. At 10:00 p.m., the temperature was −14°C. What was the temperature
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