Maths practice for 11-year-olds. - page 182 of 222
Number of problems found: 4421
- Triangle height
Calculate the height size in the triangle ABC if the side length a = 20 cm and the area of the triangle is 50 cm². - Equation
16 + 2x-7 = 5x + 10-4x - Summerjob
Milan saved a quarter of the money from the summer job, bought a winter jacket for half, bought gifts for his parents and siblings for a sixth, and still had CZK 400 left. How much did Milan earn? - Settlements distance
On the map of Kosice with a scale of 1:7,000 is the distance between the housing estate NadJezera and the housing estate Tahanovce 9 cm. What is the actual air distance of these settlements? - Ferry distance
Calculate the actual ferry length between the measured and the new measure on the map 3 cm M 1:300,000 - Garden plan
Dad wants to draw a rectangular garden on the plan for this house, which measures 23m and 20m. What will be the sides of this rectangle on the plan in scale M 1:1000? - Student plans
One-third of the 8 A class student wants to go to high school after finishing primary school, and half of the students are interested in the field of study. The remaining four have not yet been decided. How many students are there in 8 A? - Small city
The length of the street is 230 m. What will its image length be on the plan at a scale of 1:2500? - Tulip planting
The gardener planted 3/7 of the prepared tulips on the first and 1/7 on the second. What part of the prepared tulips did he already plant? What part does he have left? Can we calculate how many tulips there are? Which data is missing? - Speed limit
The maximum allowed speed in the village is 50km/h. The police measured that the car crossed the 800 m long section in 40 seconds. Was the driver fined for exceeding the speed limit? - Equation solutions The solution to the equation 3x = 8x is a / no real number b / x = 8/3 c / x = 3/8 d / x = 0 e / infinitely many solutions
- Bus intervals
Four bus lines departed from the terminal together at 5:00 AM. Line A runs at 15-minute intervals, Line B at 6-minute intervals, Line C at 20-minute intervals, and Line D at 8-minute intervals. At what time do all four lines depart from the terminal simul - Elevator
The panel house has ten over-ground stories and four underground. The lift goes from the ground floor to the 2nd floor, then down to the 3rd underground floor, nine floors up, and finally four floors down. To what floor does the elevator arrive? How many - Airport
Planes on route A depart from the airport every third day and on route B every fourth day. On 5 May, planes on both routes departed. Will planes depart on the same day again this month? If so, when? On what date in June will planes depart on both routes? - Typing time
A typist with an average speed of 250 keystrokes per minute can type a text in 16 minutes. How many minutes longer would it take to type the same text at an average speed of 200 keystrokes per minute? - Tree height
A tree with an unknown height casts a shadow 18 m long at a time, while a two-meter pole casts a shadow of 2.4 m. How tall is the tree? - Seawater salt
By evaporating 15 kg of seawater, we get 517.5 g of salt. How much seawater do we need to obtain 3.45 kg of salt? - Pool filling
The swimming pool is filled with four inflow pipes in 9 hours. If one tributary is broken, how long will it be filled? - Loom weaving
The master calculated that six looms would weave the ordered fabric in 15 hours. One condition appeared. How long before the ordered substance matches the remaining states? - Hay supply
Hay stock is enough for four horses for 60 days. How long would this supply last for ten horses?
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