Natural numbers - practice for 10 year olds - page 5 of 10
Number of problems found: 192
- On the floor
You enter the room, and there are two dogs, four horses, one giraffe, and one duck on the bed. Three chickens are flying over the chair. How many feet are on the floor? - Street
Straight streets is long x = 475 meters. At the beginning and the end of the street are poles. The poles are spaced 25 m. How many poles are on the street? - Received 5582
Jirka, Petr, and Ondra earned 6480 CZK weekly at the gas station. Jirka received CZK 1958, Petr CZK 280 more than Jirka. How much did Ondra earn? - Voting
Four hundred employees voted in a board member election with only two candidates. One hundred twenty people vote for candidate A, while half of the remaining voters abstain. How many votes does candidate B receive?
- No. 215
From the number 215, we can create a four-digit number that, among its numbers, manually type any other digit. Thus, we created two four-digit numbers whose difference is 120. What two four-digit numbers might that be? - Calculate: 80736
Gaius Julius Caesar was born in 100 BC. He was murdered when he was 56 years old. Calculate: a) in what year was he murdered? b) How many years ago was he born? c) How many years ago did he die? - Already 34231
Every time it is Friday, Mom takes five apples. Friday has already taken place 18 times. How many apples does my mom have if she always ate only 1? - At the 2
In the beginning, Kim has 25 cards. He then gave 11 cards to his friend. His cousin came over and gave him 17 cards. His uncle also came and gave him 18 cards. How many cards does he have now? - Students at cinema
All pupils from the school went to the cinema for a film performance. The cinema has 400 seats, and two rows of 20 seats remain unoccupied. Teachers occupied ten places. How many students were there?
- Children 80653
The children in the camp slept in a cottage with 17 2-bed and 25 3-bed rooms. Other children slept in 8 cabins. Each had 1 4-bed and 1 3-bed room. All rooms and beds were occupied. How many children were in the camp? - Ichthyosaurs 5577
There are five huge aquariums on an island in Jurassic World. At least two and at most six ichthyosaurs swim in each of them, with a different number in each aquarium. How many ichthyosaurs are there in total in all the aquariums? - Apples
Three types of apples are mixed in a box. What is the smallest number of apples we have to take from the box so that there are certainly at least three apples of the same kind among them? (Explain your solution!) - Cords joining
Mum needs six cords 360cm long. How many does she need when they are sold at 9 meters and does not want to join it up? - Bus driver
The bus driver rides 174 km in the morning, and afternoon rides 26 km more. How many kilometers are traveled in 5 days if he rides on the same line?
- Passengers 82638
The maximum take-off weight of the Concorde aircraft is 185,000 kg. What reserve does it have for fuel, passengers, and their luggage if the plane's weight is 78,900 kg? - Friends 82546
Two friends, Martin and Juraj, agreed that they would score +26 points for wins and -16 points for losses. Juraj lost nine times and won four times. What was his final score? - Combined 6724
Cows and sheep are kept on the farm. There are 37 cows, which is 25 more than the sheep. There are seven times fewer horses than cows and sheep combined. How many animals do they keep on the farm together? - Unknown number 16
My number's tens are three times more than the ones My number's ones are twice the number of thousands, and my number's hundreds are half the number of tens. I have two ones. Which number am I? - Together 32831
Aleš has one coin, Boris and Cyril each have two coins. Aleš has 5 Sk more than Boris and 5 Sk less than Cyril. Note Czech coins are 1, 2, 5, 10, 20, 50 Sk. Aleš has ___ Sk. Boris has ___ Sk and ___ Sk. Cyril has ___ Sk and ___ Sk. Together, they have ___
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