Maths practice for 11-year-olds. - page 226 of 230
Number of problems found: 4600
- Numbers
Determine the number of all positive integers less than 5965074 if each is divisible by 5, 29, 11. What is its sum? - Midpoints
Triangle whose sides are midpoints of sides of triangle ABC has a perimeter 83. How long is the perimeter of the triangle ABC? - The Cats and Mice Problem
Two cats caught two mice in two days. How many mouses will catch 10 cats for 10 days? - Like
There are 110 liters of water in 10 barrels. How many barrels of 5 liters do I need to get all the water from the larger barrels?
- Compass
What angle is between directions J (Juh) and ZSZ (ZápadoSeveroZápad) on the compass? - Gear
Two gears fit into each other and have a transfer of 1:2. The centers of gears are spaced 96 cm. What are the radii of the gears? - Chocolate
How many times do we have to break a chocolate bar composed of 10 × 12 pieces to get the 120 parts? - Book
Calculate the thickness of the page of the collection of examples from mathematics, where 4.87 cm is thick and has 451 pages. - Washer
The washing machine drum washes at 64 RPM. The washing machine motor pulley has a diameter of 6 cm. What must be the diameter of the drum machine pulley when the motor is at 367 RPM?
- Divisibility
Is the number 728267 exactly divisible by 8? (the result is the integer, and/or remainder is zero) - 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 (l + 15 w)/(w) = 6, then the value of the expression (13 l)/(12 w) is: - News
From 28 students buy magazines, 10 The economist students, 10 Pravda students, and 18 students don't buy any of these magazines. How many students buy both magazines? - Disjoint
How many elements have union and intersection of two disjoint sets when the first has 1 and second 8 elements?
- Three numbers
Create from digits 1-9 three-digit numbers with their sum the smallest. What value is the sum of these numbers? (Use each digit only once) - Compare
Compare fractions (34)/(3) and (12)/(4). Which fraction of the lower? - Brick
The isosceles scale has all bricks; the second weight is 1 kg, and the 1/4 of brick is on one side. The balance is in equilibrium. What is the weight of a brick? - 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 - Book
The printer used 4201 digits to number the pages of the thick book. How many pages does this book have?
The room's floor area is 33 m2, and its width is 4 m. How many centimeters of circumference was measured on the floor on the map at the scale 1:75?Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.
