Maths practice for 12-year-olds - page 247 of 307
Number of problems found: 6128
- Equation with x
Solve the following equation: 2x- (8x + 1) - (x + 2) / 5 = 9 - Calculate 3562
The 16 cm long string is 6 cm from the circle's center. Calculate the length of the circle. - Calculate 3561
There is a 12 cm long chord in a circle with a radius of 10 cm. Calculate the distance of the chord from the center of the circle. - Multiply 3560
If we multiply the number by 4, I get a third of the number 36. Specify an unknown number.
- Percentage 3557
They increased the price of the social word game SCRABBLE from SKK 600 to SKK 900. By what percentage did they increase the price of the game? - Hall
The rectangular hall will have to pave with square tiles with a side length of 15 cm. The hall has a length of 18 meters and a width of 3 m. How many tiles need to buy if 2 percent of the amount is disrupted during the work? - Hypotenuse 3554
Calculate the hypotenuse length if you know the area of an isosceles right triangle that is 24.5 cm square. - Triangle 3552
Draw a circle k (S, r = 3cm). Build a triangle ABC so that its vertices lie on the circle k and the length of the sides is (AB) = 2.5 cm (AC) = 4 cm - Percentage 3550
There are 35 pupils in the class, and 7 of them are active in sports. What is their percentage?
- Percentage 3549
A fresh mushroom weighs 8 kg. After drying, it weighed 96 dag. What percentage of water do fresh mushrooms contain? - Percentage 3548
Nine tons of potato flour are obtained from 50 tons of potatoes. What percentage by weight of potatoes is potato flour? - Percentage 3547
Quality control found that out of 4,200 products, 3,074 were perfect. What percentage did the scraps represent? - Percentage 3537
The bakery increased the price of croissants from 1.90 CZK to 2.50 CZK. By what percentage did the bakery rise in price? - Everything 3536
The cabinet for storing garden tools is shaped like a cube with an edge length of 2 m. How many m² of paint will we need to paint this cabinet if we paint everything except the bottom base? How much will it cost to paint a cabinet if one can of paint for
- Contains 3534
Iron ore contains an average of 35% iron. How much iron is obtained by melting 300 tons of iron ore? - Three-eighths 3533
The cyclist drove two-fifths of the way on the first day and three-eighths on the second day. He still has 45 km to go to the finish. a) What is the length of the whole trip? b) How many km has he covered? - The sidewalk
The sidewalk is 50 m long. On a scale of 1:200, what will the length of the plot plan be? - Equation: 3525
Solve the equation: 12- (12-5x) = 3x + (x-4) - Equation 16 + 2x-7 = 5x + 10-4x
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?Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.
