Divisibility - practice problems - page 5 of 23
Number of problems found: 450
- Pablo odd numbers
Pablo has five cards with numbers 0, 1, 6, 7, and 9. How many odd three-digit numbers can he form? - Kuba four-digit number
Jake wrote down a four-digit number containing two even digits and two odd digits. If he crossed out both even digits, he would get a number four times smaller than if he crossed out both odd digits. What is the largest number with these characteristics t - Ticket divisible probability
Petra wrote the natural numbers from 1 to 20 on 20 tickets. Millie pulls out one ticket. What is the probability that she pulls out a ticket with a number divisible by three? - Number divisible four In entry 85 * 0, replace the asterisk with a number to give the smallest possible four-digit number divisible by 4.
- Corresponding
Set Z contains all natural numbers less than 11. Set A contains all even numbers belonging to set Z. Set B contains all multiples of 5 belonging to set Z. Write all elements of set Z in the appropriate Venn diagram for the two sets. - How many How many double-digit numbers divided by nine give the rest of the seven?
- Even five-digit
How many can even five-digit natural numbers with different digits be created from the digits 0 - 6? - Easter
The Easter bunny has a large and well-cooled safe. In the safe he has stored chocolate bunnies and Easter eggs. Since before the holidays the Easter bunny experiences huge stress, he very well thought out a 10-digit numerical code for opening the safe, so - Find whole
Find whole numbers between 155 and 232 that are divisible by 2, 5, and 10. - 5 digits You have the following digits: 9, 8, 0, 1, 5. Write the smallest, even five-digit number if one digit is repeated three times and the other digits are not repeated. The digit sum of the number is: a) 9 b) 6 c) 8 d) 23
- What is 16
What is the sum of three consecutive even integers such that six more than twice the second is 2/3 of the first increased by 3/2 of the third? - AND-NOT-AND
If P is the set of multiples of 2, Q is the set of multiples of 3, and R is the set of multiples of 7, the following integers will be in P and Q but not in R: A=−54 B=−50 C=42 D=100 E=252 - Check divisibility
Check under each column to identify whether each number is divisible by 2, 5, 10, 3, 6, or 9. number; 2; 5; 10; 3; 6; 9 54180; ; ; ; ; ; 624 ; ; ; ; ; ; 2700 ; ; ; ; ; ; 5605 ; ; ; ; ; ; 568 ; ; ; ; ; ; - Number difference puzzle I am thinking of a number. The difference between nine times and four times the unknown number is 625. What number am I thinking of?
- Rectangle area dimensions
We are to create a square in the shape of a rectangle with an area of 288 m² (square) so that the sides are whole numbers. What are all the dimensions of the rectangular box we can make? How many is the solution? - Dividing
One always remained when dividing the tangerines into packages of 8 or 10. If there were more than 250 and less than 300, how many were there? - Three-digit divisible nine
Determine the number of all-natural three-digit numbers divisible by 9, consisting of the numbers 0, 1, 2, 5, 7: - Lcm = 22 + gcd The least common multiple of two numbers is 22 more than their greatest common divisor. Find these numbers.
- Most divisors
Find the number with the most divisors from the natural numbers 1 to 100. - Division residue proof
If n is a natural number that gives a division of 2 or 3 when divided by 5, then n gives a residue of 4 when divided by 5. Prove directly
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