Maths practice for 11-year-olds. - page 48 of 227

Number of problems found: 4525

A rectangular prism
A gift box in the shape of a rectangular prism measures 8 by 10 inches. What is the least amount of wrapping paper needed to wrap the gift box? Explain. What is the surface area of the gift box?
Driver departure time
What time does the driver have to leave Liberec to be in Jihlava (240 km away) at 11 o'clock if he drives at an average speed of 80 km per hour?
A piece 4
A piece of dry ice is in the shape of a cube with edge lengths of 7 cm. Find the surface area of the dry ice.
Ten candy bars
Three friends split ten candy bars equally. How many candy bars does each friend get?
Chocolate division
If I had 4/5 of a chocolate bar and wanted to split it evenly among three people, how much would everyone get?
Number fraction puzzle
Find a number whose two-thirds are two less than its three-quarters.
Beef price kilogram
A package of beef bought in the store was labelled: 0.520 kg, price 64 CZK. How many crowns does 1 kg of this type of meat cost?
Divisor remainder proportion
Calculate the divisor; if the divisor is 895, the proportion is 40, and the remainder is 15.
Measuring gold
Gold's density is 19200 kg/m³. How much does a gold bar weigh 25 cm, 8 cm, and 37 mm?
Wood statuette density
Calculate the density of the wood from which the statuette is made. Its volume is 32000 cm³, and it weighs 20800 g.
Five-digit number creation
List all five-digit numbers in ascending order that can be formed using the digits three, four, and two zeros.
Strawberries - pulp
Marta and Alice bought their children strawberries. They ate most of them, each making pulp from the remaining strawberries. Marta filled her entire cube-shaped container with dimensions 5.2 cm, 1 dm, and 8.3 cm; Alice had a cube-shaped container with an
Cylinder water liters
How many liters will fit in a cylindrical container with a base area of 0.06 m² and a height of 5 cm?
Tank can filling
How many 8-liter cans can we fill from a block tank measuring 1.2 * 1 m * 1.6 m?
Fraction division eighth
What is 1/8 of 100/4700?
Magazine subscription savings
One issue of the moderator's magazine costs 1.61 euros. The annual subscription for 12 issues is 18 euros. How much will you save on one issue when subscribing to a magazine?
Random event operations
Consider an experiment with a dice. Let us define the random events A={at most 3}, B={roll more than 1}, C={roll 2, 3, 4}. Determine the random event D that is given by the operations A∪B \ B∪C
Wire length needed
The wire measured 109.3 cm and was 0.327 m shorter than the pupils needed in the class. How long a wire did the pupils need?
Square circle difference
A circle is inscribed in a square with a side of 12 cm so that it touches all its sides. Calculate the difference between the area of the square and the circle.
Natural number composition
Which natural number contains 12 thousand, 15 hundred, 21 tens, and 11 units?

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