Maths practice for 11-year-olds. - page 121 of 222
Number of problems found: 4421
- Z6 – I – 6 MO 2019
A mother was studying multi-digit numbers in which odd and even digits alternate regularly. She called those starting with an odd digit 'comical' and those starting with an even digit 'cheerful'. (For example, the number 32387 is comical, and the number 4 - Brothers and sisters
There are 35 children in the class; 23 have a brother, and 27 have a sister. When five children in the class have no brother or sister, how many children have both a brother and a sister? - Race boy participation
Seven girls and eight times more boys took part in the race. How many boys took part in the race? - Tram meeting time
Trams of five lines run at intervals of 5, 8, 10, 12, and 15 minutes. At noon, they left the station at the same time. What time will they meet again? How many times will each tram pass the stop during that time? - Bus coupon comparison
They sell three prepaid coupons for bus travel - for a month for 500 CZK, a quarter for 1200 CZK, or a whole year for 4200 CZK. Mom rides the bus all year round. Which subscription will be the cheapest for her, and by how much? - Two villages
On the map with a scale of 1:40000 are drawn two villages actually 16 km away. What is their distance on the map? - Circle radius calculation
The area of the two circles is in a 4:9 ratio. The larger circle has a diameter of 18 cm. Calculate the radius of the smaller circle. - Father and sons
The father is 27, and his sons are two and one year old. In how many years will his sons be half his age? - Area comparison calculation
How many times is 5 dm² less than 100 m²? - Three lines
At 6 AM, three bus lines depart from the station. The first line has an interval of 24 minutes. The second line has an interval of 15 minutes. The third line runs at regular intervals of more than 1 minute. The third line runs at the same time as the firs - Radius
Find the radius of the circle with area S = 200 cm². - Evaluate - order of ops
Evaluate the expression: 32+2[5×(24-6)]-48÷24 Pay attention to the order of operation, including integers. - Common divisors
Find all common divisors of numbers 30 and 45. - Grandpa MO Z5–I–5 2019
Grandpa has three apple trees in his garden with a total of 39 apples on them. There are apples on only eight branches: one apple tree has two branches, and the other two apple trees have three branches each. Different branches bear different numbers of a - Numbers division
What number should be divided by the mixed number 2 3/4 to get 11/12? - Absolute reciprocal calculation
What do I get by multiplying the absolute value of -0.7 and the reciprocal number of 10? What do I get by dividing the opposite number by the number -14/8 and the reciprocal number to the number 4? - Perimeter of the garden
The length of the garden measures 27 1/4 m. How many meters is this dimension larger than the width of the garden, which measures 15 1/2 m? Calculate the perimeter of the garden. - Map scale distance The particular map has a scale of 1:75000 a) The distance between the two places on the map is 42 mm. What is the actual distance? b) How long would the distance show, 15.75 km on the map?
- A baker
A baker has 5 1/4 pies in her shop. She cut the pies into pieces that are each 1/8 of a whole pie. How many pieces of pie does she have? - Trees 6
On an island there grow side by side seven trees: linden, poplar, maple, oak, beech, acacia, and willow. Under one of the trees a treasure is buried. Lukáš found out from the guardian of the island that if he walks past the trees up, down (linden, poplar,
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