Math practice for 13 year olds - page 37 of 426
Number of problems found: 8512
- Ronald 2
Ronald and Tim both did their laundry today. Ronald does laundry every 6 days, and Tim does laundry every 9 days. How many days will it be until Ronald and Tim both do laundry on the same day? - Kevin 4
Kevin is 4 years older than Margaret. Next year Kevin will be 2 times as old as Margaret. How old is Kevin? - Flour to sugar ratio
I need 4 1/5 of flour for every 2/5 cups of sugar. How much sugar do I need for 8 cups of flour? - A fruit 2
A fruit salad recipe uses 3 3/4 cups of condensed milk. How much milk is needed if 2 2/3 times the recipe is prepared? - Work out
Work out the sum of 1/5, 3/4, and 1/2. Give your answer as a mixed number in its simplest form. - Kevin 3
Kevin makes a list of the tasks he has to do after school and how long it will take him to do each task. Task Time; (hours) Read ; 1/3 Do homework ; 3/4 Play soccer ; 4/6 Practice piano ; 1/2 How long will it take Kevin to complete all of his tasks? Show - Chisom
Chisom spent ⅕ of her money on ¼ of food. What fraction has she spent? - Paving Company Ltd
Roadster's Paving Company used 6 6/8 tons of cement to pave Hunter's street and 9 5/8 tons of cement to pave Jayden's street. How much cement did Roadster's Paving Company use in all? - The product 12
The product of 2 1/4 and another fraction is 7 1/2. Find the other fraction. - Terrance
Terrance budgets $435 of his salary for car expenses. His salary is $2 900. What percent of his salary is budgeted for car expenses? - One-third 14
One-third of a 1 1/4 acre has been set aside for a dog park. Find the number of acres that are used as a dog park. - The playground 2
The dome is built on the playground. The dome covers an area of 1 2/3 square meters, which is 5/840 of the total area of the playground. What is the total area of the playground? - Laila
Laila is 3/2 m tall, which is 4/5 as tall as Shanika. How tall is Shanika? What formula or equation does represent this situation? - Ruel cut
Ruel cut the grass on 1/5 of a hectare in an hour. How long will it take him to cut the grass on 3/4 of a hectare? - A blanket
A blanket is 60 inches by 72 inches. If you want to make it 1/3 smaller, what size would it be? - The ratio
At a certain convention, the ratio of men to women is 3 to 8. If there were 352 people there, how many were men? - Polynomial rectangle If the length and width of a rectangle are (a² - 6a + 4) and ( -2a² - 9a + 3), find the area of the rectangle.
- Temperature - linear function
In the morning, at 08:00 hours, the temperature was -8 °C, and in the afternoon, at 16:00 hours, the temperature was 24 °C. Assuming that the temperature changes steadily, what was the temperature at 13:00 hours, and what was the time when the temperature - Salt water
The ratio of water (in liters) to salt (in grams) needs to be 3 to 2. If we add 10 grams of salt, how much water do we need to add? - Solve 23
Solve the following inequality: 4 - ½ (2 x - 3) < 1/3 (5 - 3 x)
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