Maths practice for 11-year-olds. - page 2 of 227

Number of problems found: 4525

Largest circle
If the largest possible circle is cut from an 8 cm × 4 cm rectangle, what is the area in cm² of the remaining portion?
Circular pizza
A circular pizza has a radius of 6 inches. What is the approximate circumference of the pizza? (Use π = 3.14)
The model
The model of a building is constructed with a scale factor of 1:30. If the height of the model is 80 cm, find the actual height of the building in metres.
Sarah 7
Sarah bought snacks for her team's practice. She bought a bag of chips for $1.56 and a 20-pack of juice bottles. The total cost before tax was $33.96. Write and solve an equation to determine how much each bottle of juice cost.
A turtle 3
A turtle walks at about ¼ metre per hour. How long will it take the turtle to cover 120 metres?
Two cubes 2
Two cubes, each with a volume of 125 cm³, are joined end to end. Find the surface area of the resulting cuboid.
Twice the unknown
I am twice a certain number. If 8 is subtracted from me, the result is 6. What am I?
Crossing a pole
A train 200 m long is moving at a speed of 72 km/h. How long will it take to pass a stationary pole?
LCM and HCF 3
LCM of two integers is 1237. What is their HCF?
Directly proportional
A person earns directly proportional to the number of hours she works daily. If she works h hours one day and makes s dollars an hour, what is the total amount she earns for the day in terms of h and s?
A bike 2
A bike is travelling at 72 km/h. How much distance will it cover in 15 seconds?
The number 88
Write the number 88 as a product of prime factors.
Simple equation 12
Three times a number, divided by 2, plus 5 equals 20. Find the number.
A capsule
A medicine capsule is a cylinder with two hemispheres stuck to each end. Its length is 14 mm, and its diameter is 5 mm. Find its surface area.
Tuesday temperature
The temperature on Monday was -23 °F. The temperature on Tuesday was 18° higher. What was the temperature on Tuesday?
Ones cube
Find the volume of a cube whose total surface area is 6 m².
A restaurant’s
A restaurant’s menu has 3 appetizers, 3 mains and 2 desserts. In how many way can a 3-course meal be ordered?
A woodcutter
A woodcutter took 12 minutes to make 3 pieces of a block of wood. How much time would be needed to make 5 such pieces?
Cows and hens
In a group of cows and hens, the number of legs is 14, more than twice the number of heads. Find the number of cows.
The mystery number
Find the number that is 10,000 less than 632,724.925

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