Maths practice for 11-year-olds. - page 47 of 222

Number of problems found: 4430

Together 65964
Danka and Janka are the same age. If one were ten times less and the other five times less, they would only have three years together. How old are Jana and Danka?
Cuboid container
We have a block-shaped container measuring 20 cm x 30 cm x 45 cm. How many 5 cm cubes will fit in it?
Calculate 65924
Calculate the volume of a cylinder whose base has a diameter d = 22 cm and its height is 1.7 dm.
Centimeters 65884
The plastic bucket has the shape of a cylinder with a diameter of 25 cm and a height of 40 cm. How many square centimeters are needed to produce it? How many liters does it contain when filled 5 cm below the rim?
Increased 65874
Honza received CZK 2,830 every month. He saved from December to October. In May, he increased his pocket money by CZK 2,370, and in August, he saved two times more than in May. How much did he save in October?
Isosceles 65784
An isosceles triangle has an angle of 78°20' at the base. Calculate the size of the angle between the arms.
Mang isidro
Mang Isidro harvested sacks of rice, each containing 50 kilograms. He delivered 275 kg to the market to be sold. The remaining 25 kilograms were left for his family's consumption. How many sacks of rice did Mang Isidro harvest?
The temperature 26
The temperature on February 2 in Lake City was 14 F The temperature in Ellenville the same day was -6 F. how much warmer was it in Lake City than in Ellenville?
Dog food
The bag of dog food weighs 25 pounds. Each serving of dog food weighs 5 ounces. How many servings of dog food are in the bag?
Remaining side
Calculate the remaining side of the rectangle when you know the size of the perimeter and the length of one side. Perimeter o=38cm, and side a=12cm.
Kilometers 65444
The cyclist will ride 42.5 km in 2.5 hours. How many kilometers will he cover in 4 hours and 15 minutes?
Characteristics 65294
Kuba wrote down a four-digit number, two evens, and two odds. If he crossed out both even digits in that number, he would get a number four times smaller than if he crossed out both odd digits in the same number. What is the most significant number with t
Proportion 65244
Divide number 74 by 9, and find the proportion and the remainder. How much do we have to reduce the number 74 to halve the proportion and increase the remainder three times?
Arithmetic 65234
Katka is six years old. The arithmetic mean of the ages of Anna and Paul is 12 years. What is the arithmetic average age of Katka, Anna, and Paul?
Expressions 65194
Calculate the product of numeric expressions A and B if: A = 10 - (9 -8) - (6 -7) B = 4-10² + 5.10 + 9
Dimensions: 65144
Calculate the volume of the block in dm³ S dimensions: a = 22cm b = 80dm c = 0.63m
Circumference - circles
Circle K has a radius of 130 mm, and circle L has a diameter of 50 mm. By how many millimeters is the circumference of circle K greater than the circumference of circle L? Round the result to a whole number. Use the value π= 3.14 in the calculations.
Expression 65104
There were x boys on the school trip. There were 6 fewer girls than boys. Everyone took the two-seater cable car from the lower to the upper station. Decide which expression expresses the number of double seats students occupy if two students occupy each.
Multiply three ints
The product of the three numbers is 224. The first is 10, and the second is 50 times smaller than the first. Calculate the third number.
Circumference 64994
Calculate the volume of the cylinder if the circumference of the base o = 31.4 cm, height v = 6.4 cm

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