Reason + natural numbers - practice problems - page 5 of 28
Number of problems found: 543
- Possibilities 66804
Without listing all the possibilities, calculate how many different pairs can be made A) of 12 pupils who want to go down a water slide on a two-seater inflatable in the water park. B) of 15 pupils who want to ride toy cars in the amusement park. - Expression 66754
Find the largest natural number n for which the value of the expression (37-2n) / 3 equals the natural number. - Prepared 66494
Benches were prepared around the fire. When seven tourists sit on them, one tourist will sit alone on the last bench. When six of them all sat down, one had to stand. How many tourists were at the campfire if we know there were less than 100, and how many - Find two digits
Find the possible values of A and B if the six-digit number 2A16B6 is divisible by 4 and 9. Please write the result as a composed number. - Contains 66184
Which natural number contains 12 thousand, 15 hundred, 21 tens, and 11 units? - Achievement 66164
The test consisted of 50 questions, each with one possible correct answer. The test result is given by the sum of the correct answers, a maximum of 100 points. The criterion for admission was the achievement of 50 points. The study applicant answered 36 q - Specific 66124
The numbers are arranged in a specific logical order. Fill in the missing numbers. 5, 8, 16, 15, 18, 36, 35, 38,?,?, - Numbers 65734
There are 100 tickets in a pocket with the numbers 1 to 100. What is the probability that we will randomly draw a ticket with a number starting with the number 5? - Triangle from sticks
Bob the boulder has many sticks of lengths 3.5 and 7. He wants to form triangles, each of whose edges consists of exactly one stick. How many non-congruent triangles can be formed with the sticks? - Increased 64324
The number of books in the city library increased by 0.2% in 2008 and 0.6% in 2009. At the same time, the total number of books remained less than 300,000. How many books were added to the city library in 2009? - Dolls
Dorotka cut the doll's way out of two batches. She was always left with one more doll, with every two dolls cut out. How many dolls did they cut in total if the number counted 16 of them in the first cut-out? - 214568793 62744
Find the three digits that need to be deleted from 214568793 to make the number as small as possible. What is the sum of these deleted digits? - Hens and rabbits
There are a certain number of hens and rabbits in a room. The number of feet of the hens exceeds the number of feet of the rabbits by 12, while the number of heads of the hens exceeds the number of the heads of the rabbits by 28. Then the number of hens a - Gertrude 62304
Six boys and six girls (among them Emil, Félix, Gertrude, and Hanka) want to dance. The number of ways they can make six (mixed) couples if Emil does not want to dance with Gertrude and Hanka wants to dance with Felix is? - Expressions 62294
Express the numbers 18, 28, 32, 40, 48, and 200 as numerical expressions composed of exactly five pairs. - Expressions 62284
Express the numbers 18, 28, 32, 40, 48, and 200 as numeric expressions composed of the digits 5. - Students 62184
There are 16 students in the class. If the teacher wants to choose two students who will be weekly, how many options does she have? - How many
How many double-digit numbers divided by nine give the rest of the seven? - Spouses 61294
Ten married couples board the train, which has five cars. How many ways can they take if no two spouses want to be in the exact vehicle? - Even five-digit
How many can even five-digit natural numbers with different digits be created from the digits 0 - 6?
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