Comparing - practice for 12 year olds - last page
Number of problems found: 218
- Denominator 2883
Write a fraction with a denominator of 200 greater than 0.39 and less than a two-fifths fraction. Write its numerator x. - Beginning 2879
Juro, Fero, and Mišo played bullets. In the beginning, everyone had the same number. In the first game, Juro won 4 bullets, and Fero 5 (that means Mišo lost nine bullets). In the second game, Mišo won 7 balls, and Fero lost four balls. In the third game, - One-fifth 2869
Find all natural numbers that are twice as much as one-fifth plus nine. How many are there? - Millimeter 2844
The fastest animal in the world is the cheetah, which reaches a speed of 34 meters per second. One of the slowest animals is the snail, which travels at 1/2 millimeters per second. How many times is a cheetah faster than a snail?
- Money borrow
Ms. Kate wants to borrow € 2,000. Company A will borrow ten payments of 240 euros and the first two months do not pay anything. Company B borrows in 12 payments of € 210. Which company has the more favorable interest rate for Ms. Kate? - Grass garden
Mr. Grass would itself be mowed garden for 5 hours. His son Michael could do it for 7 hours. They agreed that they wake up at 5 am and begin to mow together. Ms. Grass needs to drive into town at 8.30. Michael says that at that time, they're done with wor - Nine balls
Imagine that you have exactly the same appearance as nine balls, of which one has a greater mass than the other. You have isosceles weights. Post a procedure as you would using weights to discover heavier balls. How many measurements at least do you have - Pavilion
The rectangular pavilion with dimensions of 3.5 m and 2.75 m is to be paved with square tiles of side 25 cm, price of CZK 22 per 1 piece or rectangular tiles with sides of 20 cm and 15 cm in the price of CZK 11 per 1 pc. Which solution is cheaper (write i - Compare:
What is bigger? ...
- Buildings
The school stands 110 m from the church, which is 100 m beyond the town hall. Which buildings are closer to the church, and how many times? - Mr Novak
Mr. Novak earns an average 927 euros. When increasing the salary, they gave him a choice: ... What is a better choice for Mr. Novak? - Rope slack
Between two streets, 20 m away, give the lamp in the middle and hang 60 cm below the taut rope. Can it be done with a 20.5 meters rope? - Potatoes
Could 446 tons of potatoes (ρ = 771 kg/m³) fit in a warehouse with a volume of 699 m³? - Root
The root of the equation (x-10)² +4 = x² +35x is (equal or greater or less than zero). ...
- Opposite numbers
Calculate opposite numbers (additive inverse) to given ones: - Cylinders
The area of the side of two cylinders is the same rectangle of 33 mm × 18 mm. Which cylinder has a larger volume, and by how much? - Compare
Compare fractions (34)/(3) and (12)/(4). Which fraction of the lower? - Rates
When gas consumption, the consumer may choose one of two rates: rate A - which pays 0.4 € per 1 m³ of gas a flat monthly fee of 3.9 € (regardless of consumption) rate B - which pays 0.359 € per 1 m³ of gas a flat monthly fee of 12.5 € From what monthly co
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