Maths practice for 12-year-olds - page 341 of 347
Number of problems found: 6923
- Water
Into a full cylindrical tank high 3 m with a base radius of 2.5 m, we insert a cuboid with dimensions 1.7 m, 1.3 m, 1.9 m. How many liters of water will overflow out? - Expression
If it is true that (p + 9 m)/(m) = -19, then the value of the expression (13 p)/(11 m) is: - News
Of 28 students, 10 The economist subscribe to the first magazine, 10 Pravda subscribe to the second magazine, and 18 subscribe to neither. How many students subscribe to both magazines? - Three numbers
Using the digits 1–9, form three-digit numbers such that their sum is as small as possible. What is the value of this sum? (Use each digit exactly once.) - Tippler
Bottle with cork cost 6.6 Eur. The bottle is 0.6 euros more expensive than the cork. How much are a bottle and the cork? - Compare
Compare fractions (34)/(3) and (12)/(4). Which fraction of the lower? - Homework
In the crate are 18 plums, 27 apricot, and 36 nuts. How many pieces of fruit were left in the crate when Peter took 6 ninth: 1. nuts 2. apricots 3. fruit 4. drupe - Sea on the Moon
Assume that the Moon has a sea with the same composition as Earth's (it has the same saltwater density). Calculate the boat's dive floating in the sea on the Moon when on Earth, it has dived 3.9 m. Consider that the Moon has 6.5-times smaller gravitationa - Equator
Suppose a tourist walked all the way around the Earth along the equator. How many more metres would the tourist's hat travel than the soles of their shoes? The radius of the Earth is 6378 km, and the tourist's height is 1.7 m. - Book
The printer used 4201 digits to number the pages of the thick book. How many pages does this book have? - Expansion
If one side of a rectangle is multiplied by 2 and the other side by 4, by what percentage does the area increase? - Potatoes
Potatoes contain 77.6% starch. How many potatoes need to obtain 71.8 kg of starch? - Colors
Arnold received 7 coloured pens of different colours for their birthday. In how many ways can they be arranged side by side in a pencil case? - Map
A forest has an area of 77 ha. What area does it occupy on a map at scale 1:10000? - The pipeline
How long is a pipe with an outer diameter of 1.4 m if painting it consumed 35 kg of paint? One kilogram of paint covers 9 m². - Raffle
In the pool number from 1 to 109. What is the probability that a randomly selected number is not prime? - Divisibility
Determine all divisors of a number 91. - Inflation
What is better for people (employees)? ... - 4-gon
Is it true that a quadrilateral with two parallel sides and the other two sides of equal length is necessarily a parallelogram? - Strange x
For what x is true x=19x?
Do you have unsolved math question and you need help? Ask a question, and we will try to solve it. We solve math question.
