Maths practice for 12-year-olds - page 157 of 355

Number of problems found: 7083

Apple basket division
The foreman collected 268 kg of apples and must sort them into baskets of 7 kg each. Can they divide the apples correctly? Will all baskets be refilled? How many baskets will they need if they want to put all the apples in the baskets?
Copper wire
What is the weight in kg of copper wire 200 m long with a diameter of 0.6 cm if the density of copper is 8.8 kg/dm³?
Cube-shaped container
The cube-shaped container has a height of 52 cm and a square base. The container was filled to the brim with water, and then we immersed a metal cube in it, which caused 2.7 l of water to flow out of the container. After removing the cube from the water,
Hall tile
In the family house, they will line the hall with 6m * 10m tiles with dimensions of 25cm * 35cm. How many tiles do they consume if they have to count on a tenth of the waste?
James 2
James collected 24 seashells on the seashore to be shared with his two friends. What fractional part of the seashells will each get if distributed evenly?
Gasoline price 2
During the COVID-19 pandemic, Marilou's Gas Station gives a new gasoline price scheme to help our drivers. On their purchase, the first 4 liters cost Php 120.00, while the succeeding 1 1/2 liters would cost Php 10.00 more than the cost of a liter. If John
Ricky
Ricky painted 3/5 of the side of the garage. When he repainted ½ of this part, what part of the side of the garage did he paint twice?
Cube volume edge
1. Calculate the volume of a cube whose edge is 3.6 dm long. 2. Calculate the edge's size if you know its surface S = 2166 mm².
Three cubes
Two cube-shaped boxes with edges a = 70 cm; b = 90 cm must be replaced by one cube-shaped box. What will be its edge?
The temporary
The temporary workers collected 358 kg of apples and packed them into 8 kg boxes. How many boxes did they fill? Is there a box left unfilled? How many boxes did they need together?
A bug
A bug was sitting on the tip of a wind turbine blade that was 24 inches long when it started to rotate. The bug held on for five rotations before flying away. How far did the bug travel before it flew off? Exact answer.
Two identical five-digits
We have two identical five-digit numbers, but we don’t know which ones. When we write one before the first, and after the second one, we get two six-digit numbers, one of which is three times the other. What are the numbers?
Number sum square
Calculate the square of the half of the sum of the numbers 3/5 and -1/3.
Quadrilaterals
Which of the following statements about angles in quadrilaterals is false a. In a right-angled trapezoid, exactly one interior angle is obtuse. b. The diagonals of a rhombus are right angles. c. The sum of the measures of any two interior angles in a para
The pool
The pool is 25 meters long, 10 meters wide, and 1.5 meters deep. How many liters are needed to fill it completely? How much will the new floor and wall paneling cost if one m² costs 10 euros?
Cylindrical tank
A tank has the shape of a cylinder with a diameter of 1.6 m and a length of 4.5 m. At least how many cylindrical barrels with a diameter of 0.8 m and a height of 1.5 m are needed to empty a tank?
Latitude and longitude
A helicopter is flying from Hong Kong to Jakarta. The latitude of Jakarta is -6.20, and its longitude is 106.80. The latitude of Hong Kong is 22.27, and its longitude is 114.15. What is the helicopter net change in latitude and longitude as it travels fro
Shopping meeting
Katka left the store with a heavy purchase at a constant speed of 0.5 m/s. Her brother Michal ran to help her at a constant speed of 3.25 m/s. How many meters did Katka have to walk with her shopping before meeting Michal if the store is 300 m from the ho
What is 10
What is the measure of the square side whose area is (4x² + 28x+49) square units?
Cube half
How much is half the half the cube half?

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