Maths practice for 11-year-olds. - page 114 of 229
Number of problems found: 4571
- Calculate 19673
The surface of the sphere is 1256 cm². Calculate the radius of the sphere. - Calculate 19653
Calculate the height of the rhombus ABCD on the side a if a = 58 dm and its area is 49.3 m2 - Granite 19643
The granite block weighs 8.7 tons. The density of granite is 2.9 g / cm³. Find the volume of the block in m³. - Equation: 19613
Equation: 6 (x + 1) -4 (2x + 3) = 7 (x-1) +5 (9-x) - Daughter 19573
The father is 36 years old, and his daughter is four years old. Write down the ratio of father and daughter's ages. What will be the age of the father and daughter in four years? - Simplify 19533
Simplify 5a. (-3a) - School year
At the beginning of the school year, 396 notebooks and 252 textbooks were ready to be distributed in the classroom. All pupils receive the same number of notebooks and the same amount of textbooks. How many pupils are there in the class if you know that t
- Chess competition
Four chess players took part in the competition. How many matches would have taken place if every chess player had played with everyone just once? - Millimeters 19473
In the garden of 860 square meters, 4 millimeters of water rained down. How many 10-liter pitchers would we pour this mystery on just as heavily? - Candies
There are 150 candies in the bowl. Ivan took seven thirtieths, Charles six fifteenths, and Thomas three-tenths, leaving 150 sweets in the bowl. - One-third 19333
The 7-meter-long rod has one-third of its length in the ground and a quarter in the water. How many meters of the rod are not in the water or the ground? - Expression 19303
The area of the diamond is 112 cm square, and the length of its side is given by the expression x + 5 cm. Calculate this length if the height of the diamond is v = 7 cm. - Difference 19273
When I subtract their difference from the sum of two arbitrary numbers, I always get twice the second number. Why? - Two-liter 19243
The barrel can be filled with just a two-liter measuring cup and a measuring cup for 3l, 5l, 7l, and 10l. What is the smallest volume this barrel can have? - One-quarter 19223
Fractions problem: There are 8 lanes in the pool, but divers have one-quarter of them. One-half of the remaining lanes are for fitness swimming. The other tracks are for games and jumps. How many lanes can people jump into the water?
- Contain 19203
The water tank has the shape of a block. The inner length is 5.2 meters, the width is 2.4 meters, and the depth is 1.5 meters. If the tank is filled to 3/5 of its depth, how many liters of water does it contain? - Actions 19163
Peter went for a walk with his younger brother Jirka. Peter makes steps 70 cm long, and Jirka 45 cm. How many meters do their actions meet again if they walk on the same foot? - Delivers 19143
The pump delivers 34 hl of water per minute. How long does it take to fill the tank with a volume of 10m³? Write the result in hours and minutes. - Superman 19093
Superman has a jet car that drives at 720km/h. How many seconds will he reach the villain, who is 1600m away? - Calculate 19083
A) The wooden cube has an edge 14.7 cm long. Calculate its surface area and volume. B) The metal cube's inner edge is 13.6 cm long. How many cm of water can fit in it?
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