Maths practice for 11-year-olds. - page 218 of 230
Number of problems found: 4595
- The largest number
Find the largest integer such that: 1. No figures are not repeated, 2. The multiplication of every two digits is odd, 3. In addition, all digits are odd. - Jan and Dan
Jan and Dan had the same money. Jan bought five workbooks and left him 15 CZK. Dan 6 and left him nothing. How much money do they have in total? - Honza + Alice + Tonda
Honza + Alice + Tonda have a total of 111 USD. The ratio between Honza and Alena is 5:6, and the ratio between Alice and Tonda is 4:5 How much money does each of them have? - Bus driver
The bus driver rides 174 km in the morning and 26 km more in the afternoon. If he rides on the same line, how many kilometers does he travel in five days? - 7th grade pupils
Pupils research which winter sport their classmates is most popular. They found that 2/5 of classmates would most like to play hockey, skate preferred 2/9 pupils, 3/10 students prefer skiing, and 1/15 of classmates don't like any winter sport. What propor - Cupcakes
In a bowl were some cupcakes. Janka ate one-third, and Danka ate one-quarter of the cupcakes. a) How many cookies ate together? b) How many cookies remain in a bowl? Write the results as a decimal number and notepad as a fraction. - Liquid soap
Three-member family enough liter of liquid soap for 20 days. After how many days the amount consumed when at the holidays come to us two cousins.
- Map 2
At what scale is a map made if the distance 1.3 km corresponds to the map segment 4 cm long? - Potatoes
Could 446 tons of potatoes (ρ = 771 kg/m³) fit in a warehouse with a volume of 699 m³? - Hiker
The hiker went on half of the trip on the first day, a third of the trip on the second day, and remains 15 km. How long was the trip he planned? - Garden
Father dug up the garden in 19 few hours. Son in 23 hours. How many hours does it take to dig up the garden together? - Rotatable tower
The rotatable tower situated in the city center has the ground shape of a regular polygon. If the tower is rotated by 18° around its centerpiece, it looks from the side same. Your task is to calculate at least how many vertices can have a ground plan view - Christmas
Exactly after 114 hours, we sit down at the Christmas Eve table. What day and what time was it when Dad said this sentence? They sit at the Christmas Eve table exactly at the 18-o'clock (6 PM). - Soup
47% of pupils at the school eat in the canteen, 1/47 of students who eat in the canteen eat lunch soup. a) What percentage of pupils who eat in the canteen and eat soup for lunch? b) What percentage of all pupils of school eat lunch soup? - Sales off
Calculate the original price of the good if the price after discount 25% and the subsequent rise of 20% is 400 USD.
- Rounding
The following numbers round to the thousandth: - Decomposition
Make decomposition using prime numbers of number 206. The result is written as prime factors (all, even multiple) - Playing Cards
Kara has 2 times more cards than Dana. Dana has 4× less than Mary. Together, they have 728 cards. How many cards have each of them? - Segments
We divide line segments 59 cm and 5.3 dm long into equal parts, the lengths of which are expressed as integers in centimeters. How many ways can we divide? - Evaluate
The division of numbers 6 and 3 increases as a by-product of the numbers 115 and 0.1.
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