Maths practice for 12-year-olds - page 3 of 351
Number of problems found: 7001
- A liter of a milk
One litre of milk costs Rs 42.50. What will be the cost of 2.5 litres? - Eva wraps
Eve wraps a gift box in the shape of a right rectangular prism. The figure shows a net for the gift box. How much wrapping paper did she use, in square metres? - Swim kilometers
Amy swam 2/9 kilometres to an island. Then she swam 1/9 kilometres to a boat. How far did she swim in all? Write your answer as a fraction in simplest form. - A road 2
A road crew must repave a road that is 4/5 miles long. They can repave 1/20 miles per hour. How long will it take the crew to repave the road? Write your answer in simplest form. - Tammy
Tammy attends Gray River College. Tuition this year is $6,450. Tammy's parents have saved $2,000 for her tuition. She also has a grant for $1,100 and a music scholarship for $800. Tammy plans to earn the rest at her work-study job. How much money does Tam - A rope for cow
Find the length of rope by which a cow must be tethered so that it can graze an area of 154 m². - Cu ore
An ore contains 5% copper. How much ore is required to obtain 400 grams of copper? - Bellow one
What is 1/3 expressed as a whole number? - Last Friday
3/4 of the children were present at school last Friday. If 90 children were present, how many were absent? - Fabric - Jose
Jose had 1 5/7 yards of fabric and used 24/59 of a yard for a project. What fraction of the fabric did he use? - Submarine and plane
A submarine is floating 900 m below sea level. Directly above it, an aeroplane is flying at an altitude of 4,800 m above sea level. What is the vertical distance between the two? - Division with a remainder
Find the smallest number which, when divided by 8, 12, and 20, leaves a remainder of 5 in each case. - Two friends 5
Two friends, X and Y: X is 36 years old and Y is 16 years old. In how many years will X be twice as old as Y? - Rectangle - S2
Calculate the area and perimeter of a rectangle with a length of 8 cm and a width of 5 cm. - Triangle - same sides
Can the sides of a triangle have lengths of 11, 11, and 14? If so, what type of triangle is it? - The radius 4
The radius of a sphere is r = 9 cm. What is the volume of this sphere? Use π ≈ 3.14 and round your answer to the nearest hundredth. - Pizza - sleepover
Patricia and Amber had 9 pizzas delivered for a sleepover. Patricia ate 2/3 of the pizzas. How many pizzas did Amber eat? Nothing was left. - A gardener
A gardener wants to fence a circular garden with a diameter of 21 m. Find the length of rope he needs to purchase if he makes 2 rounds of fence. Also find the cost of the rope if it costs $0.40 per metre. - Britney
Britney made 12 1/4 bags of popcorn for a movie night with some friends. Together they ate 8 7/8 bags of it. How much popcorn was left? Write the result as a fraction or a mixed number. - Tomatoes 3
The price of tomatoes was $5.45 per kilogram last week; this week, it has increased by $1.35 per kilogram. Find the price of tomatoes this week.
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