Maths practice for 12-year-olds - page 91 of 349
Number of problems found: 6979
- Something 71734
The teacher enters the class. Half of the pupils are looking for something, a third pass, and five are sitting. How many students are in the class?
- Three-digit 71724
Use the product rule to find out how many three-digit numbers exist.
- Cylindrical 71714
How many hectoliters of water are in a cylindrical water tank with a base diameter of 3 meters and a depth of 60 cm?
- The temperature 31
The temperature last night was -11°C; at noon today, it was 3°C. What is the difference between the temperatures?
- Strawberry 71664
The opaque package contains five lemons, six apples, and three strawberry candies. At least how many sweets do we have to choose so that there is at least one strawberry among them?
- Trent
Trent operates a hot dog stand. On Wednesday, he used two bags of hot dog buns. On Thursday, he used 1/5 as many hot dog buns as Wednesday. How many bags of hot dog buns Trent used on Thursday?
- Measuring 71594
How much do we pay for the mesh around the garden, which has the shape of a square measuring 25m, and one ordinary meter of mesh costs 23 euros?
- Beni has
Beni has a rectangular tub with a height of 50 cm, a width of 70 cm, and a length of 90 cm. He will fill the tub with water. The amount of water needed to fill 2/3 of Beni's tub is :
- A rectangle 9
A rectangle measures 2 1/5 inches by 2 1/5 inches. What is its area?
- Temperature 71534
In the morning, they measured the temperature at 5.7 degrees Celsius. What will the temperature be when: A) warms by 6.3 degrees Celsius B) cools by 0.9 degrees Celsius C) cools down by 9 degrees Celsius and immediately warms up by 18.8 degrees Celsius D)
- Temperature 71494
The temperature at the foot of the mountain is 17.5 degrees. At its peak, they measured a temperature of -12.7 degrees. What temperature difference will climbers overcome when overcoming the peak?
- Dimensions 71454
I will reduce the poster with sides of 2.4 m and 1.6 m in a ratio of 3:8. What are its new dimensions?
- Add to subtracting
Solve a simple equation with fractions: n-1/6=1/2
- Add quarter to a number
What is the total of 80 plus 1/4 of 120?
- Raymond
Raymond is designing a 1-liter Tetrapak for milk. He knows that the rectangular base must be 50mm by 100mm. Therefore, he needs to make the height of the Tetrapak.
- Triangle 71404
Which three lines of a given length can be three sides of a triangle? A / 42mm; 22mm; 12mm; B / 5cm, 50mm, 6cm; C / 10m, 5m, 50dm; D / 2.1cm, 4.2cm, 1.9cm
- Quadrilateral 71394
Sketch a grid of a quadrilateral prism with a rectangle of 1 cm x 3 cm and a height of 5 cm.
- Cylinder-shaped 71384
My father installed a cylinder-shaped pool in the garden with a bottom diameter of 6 m and a height of 1.5 m. how many hectoliters of water can fit in the pool? How many m² of space must be cleaned after draining the pool?
- Cuboid - surface area
Calculate the surface of a block whose two sides measure 12.8 cm and 162 mm and have a volume of 3,214.08 cm3
- Rectangular 71354
There is a rectangular plot of land in the schoolyard on which they want to sow grass. How many kg of grass seed will they need if the plot is 125 m long and 8.5 m wide? 1 kg of grass seed is needed for 25 m².
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