Maths practice for 12-year-olds - page 281 of 352
Number of problems found: 7031
- Minutes 4009
One egg is boiled for 5 minutes. How many minutes will five eggs be cooked? - Journey 4008
Hansel has a step length of 75 cm, and his little sister Danka is only 60 cm. How many steps does Danka take to school if Jan walks 820 steps? How many steps does their father take on the same journey? Who walks 4.5 m in 5 steps? - Gasoline
The chauffeur paid 54 euros for a nearly full tank of 40 liters of gasoline. If the car has an average fuel consumption of 7 liters per 100 kilometers, how many euros will it cost to travel 250 km? - Expression: 4005
Specify the value of this expression: 214:218. - Circumference 4002
Calculate the diagonal of the cube, with the circumference of one of its walls being 48 cm. Then, determine its surface and volume. - Specify: 4001
Specify: a = D (240,320) b = n (40.64) - Algebrogram
Solve algebrogram: mama+anna=vari How many solutions are? - One-fifth 3999
They sold one-fifth of the fabric package in the store, and 44m of fabric remained in it. How many meters of material were in the package? - Apples and pears
Mom divided 24 apples and 15 pears among the children. Each child received the same number of apples and pears - the same number as their siblings. How many apples (j=?) and pears (h=?) were received for each child? - Cross-section 3997
The edge of the cube-shaped dice is 3.5 cm long. How many of these cubes are made of an oak beam 3.5 m long and a square cross-section with a side 35 cm long? - Calculate 3996
The initial share price first fell by 2%, and then this new price rose by 20%. The final share price is CZK 2,400. Calculate the initial share price. - Calculate 3993
The median of the trapezoid p is 18.6 cm, and the base a = 29.8 cm. Calculate the size of the second base c. - Circumference 3991
The circumference of the vehicle's front wheel is 1.44 m, and the circumference of the rear wheel is 2.56 m. How long did the vehicle travel when the front wheel made 560 more revolutions than the rear? For the unknown, choose the number of revolutions of - Candies 3989
How many candies does Renata have in the box? There are less than 50 of them. She can divide them fairly among her five or even six friends and still have one candy left over for her and her brother. How many candies are in the candy box? - Republic 3988
The Czech Republic has an area of 78866 km². If this area were the area of a square, it would have a side of 280.83 km. How long before we go around this square at 50 km/h? - Percentage 3980
Calculate the percentage of waste when we cut out 4 of the largest possible circles from a square sheet with sides of 1 meter. - Increased 3979
The cost of the coat, 1500kc, was reduced by 20% and increased by 20% after a week. What is the price? - Numbers 3973
The average of the two numbers is 74. One of these numbers is a) 62.5 b) 102 specify the second number - Cheetah
The cheetah elapses 150 m for 5 seconds, the eagle reaches speeds up to 230 km/h, and the dolphin swims 1.2 km per minute. Which animal is the fastest and slowest? The results are written as meters per second (m/s). - Customer
A customer purchased three (3) writing pads from a store. She receives a k9.70 change from a k10.00 note. How much does its writing pad cost?
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