Maths practice for 11-year-olds. - page 198 of 220
Number of problems found: 4398
- Penultimate 2303
In the last 20 minutes, six songs were played. Two were the same length, 2 minutes each, 49 s. The next two were 52 seconds longer than the previous one. The penultimate song lasted only 180 s. How long was the last song? The last song lasted. It could ha - School library
The school library contains 6300 books. These comprise 7% of professional books for teachers, 18% of interest books and encyclopedias for pupils, and the rest of the fairy tales. How much are which books each type? - Paper collecting
At the paper collecting contest, Franta gathered 2/9 tons, Karel 1/4 tons, and Patrick 19/36 tons of paper. Who has gathered the most and the least? - Package
The package was 23 meters of textile. On the first day, it sold 12.3 meters. How many meters of textile remained in the package? - The tap
For one day, 148 l of water came out of the tap. How much water will flow out for 3/4 days? - Area of square
Calculate the area of the square whose perimeter is 24 dm. - Family
Mom is 39 years old. Karl is eight, and Paul is four. In many years, would the mother be old, just like two children together? - Seeds
Of the 72 wet seeds, 7/8 germinated. How many seeds germinate? - Chocolate
Children break chocolate first to third and then every part of another half. What kind got each child? Draw a picture. What part would have been received if each piece had halved? - Parallelogram
In the parallelogram, we know one internal angle of 67°33`. Calculate the other internal angles. - Roses and tulips
At the florist are 50 tulips and five times fewer roses. How many flowers are in the flower shop? - Dining tables
The dining room has tables with four chairs, six chairs, and eight chairs. How many diners must be at least to occupy all tables (chairs) and diners are more than 50? - Fence
The square garden has an area of 537 m². How many meters of netting is necessary to fence it? - Johnny
Johnny bought 28 CZK flowers for mum. He spent 4/7 of the money saved. How much money had he saved? How much money was left him? - LCM
The common multiple of the three numbers is 3276. One number is in this number 63 times, the second 7 times, and the third nine times. What are the numbers? - Tailor
Tailor bought 2 3/4 meters of textile and paid 638 CZK. Determine the price per 1 m of the textile. - Compare:
What is bigger? ... - Cuboid 5
Calculate the mass of the cuboid with dimensions of 12 cm, 0.8 dm, and 100 mm made from spruce wood (density ρ = 550 kg/m³). - Day Number
The day number is the serial number of the day in the relevant month (i.e., the number on 5 August 2016 is 5). The digit sum of the day is the sum of the values of all digits on the date of that day (i.e., the digit sum on 5 August 2016 is 5 + 8 + 2 + 0 - Chamber
In the chamber, light is broken, and all from it must be taken at random. Socks have four different colors. If you want to be sure of pulling at least two white socks, we have to bring them out 28 from the chamber. To have such certainty for the pair of g
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