Maths practice for 11-year-olds. - page 159 of 230
Number of problems found: 4587
- Blows 5730
When it is said that the wind blows 25 m/s, how much km/h blows?
- Trolleybus 5729
How do pupils travel to school? 2/7 uses a trolley bus, 1/5 drives, and the remaining 136 pupils walk. How many pupils are there at school?
- Water block
A block with a 50 cm² base is filled with water 5 cm under the edge. How many sugar cubes with a 2 cm edge can be thrown into a container that overflows with water?
- Cross-section 5721
Calculate how much electric current flows through the circuit if a 3 C (C is SI unit - Coulombs) electric charge passes through the conductor cross-section in 30 seconds.
- Electrical 5720
The bulb is connected to a 4.5 V power supply. An electric current of 45 mA flows through the filament of the bulb. The calculated size of the electrical field of the filament lamp
- Electrical 5719
A resistor with an electrical resistance of 1.5 kiloohms passes through an electrical current of 0.1 amps. Calculate the electrical voltage between the resistor terminals
- Coil as a girl
The electrical resistance of the copper wire coil is 2.0 ohms. What current runs through the coil when the voltage between the terminals is 3.0 V?
- Candies 5714
Jurko ate 1/6 of the candies, with ten sweets left. How many candies were there in total?
- Pupil age
I am a primary school pupil, and I spent 1/4 of my age on parents' exercise with children, 1/3 on drawing, and 1/6 on flute. I did not have a ring for the first three years of my life and never went to two rings at once. How old am I?
- Divide 5707
11/4, what will we divide to get 11/12?
- Train and walker
Walker passes an hour 5 km. Express train per hour 100 km. Walker went for 4 hours. How many minutes did the distance express train?
- Savings
Eva lent 1/3 of her savings to her brother, 1/2 of her savings spent in the store, and 7 euros left. How much did she save?
- Compared 5703
In the 223 matches, the teams scored 1174 goals, of which home teams scored 638. From the duels played so far, the home team won 127 times. How many more goals have the home team scored in the duels played so far compared to the visitors?
- The traveler
The traveler Filip set out to travel around Slovakia. Find out how many kilometers Filip traveled if he crossed the route Bratislava-Zilina-poprad-zilina-prievidza-zilina-bratislava. BA FOR 198km, FOR SW 60km, FOR PP 142 km
- Grandmother 5695
Franta spent 4 sixths of the money he got from his grandmother on a cassette with songs. With the help of a neighbor, he earned 2 sevenths of the amount he received from his grandmother. Express as a fraction what part of the money from his grandmother wa
- Density 2
The driftwood has a mass of 25 grams and a volume of 30 cm to 3rd power. What is the density of a piece of driftwood? And how do I figure it out?
- Rainfall
A rectangular garden of 25m in length and width 20m in width is filled with 4mm of water. Express by a fraction in basic form what part of the 60-hectolitre tank we would fill with this water.
- Proportion 5684
I think the number. If I reduce it three times, increase the proportion by 5/6, and decrease the sum 0.5 times, I get 2 1/7. What's the number?
- Lemonade
How many are 1/4 cup servings in 2 and 1/3 cups of lemonade?
- Determine 5673
An airplane flew from city A to city B at a speed of 500 km/h. Fifteen minutes later, an airplane took off from city B to city A at a speed of 450 km/h. After 45 minutes, the planes met. Determine the distance between A and B.
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