Divisibility - practice problems - page 6 of 23
Number of problems found: 450
- Divisibility indirect proof
Prove indirectly: No odd natural number is divisible by four. - Four-digit number puzzle
Find all four-digit abcd numbers to which abcd = 20. ab + 16. cd, where ab and cd are double digits numbers from digits a, b, c, and d. - Target extra remainder
The arranger has at his disposal a certain number of colored targets, from which he wants to create a rectangular pattern of a flower bed. If he puts 4,5,6,8,9, or 10 targets in one row, he always has three extra targets. How many targets does it have? De - The largest divisor
The largest number which divides 60 and 75 leaving remainders 8 and 10 respectively is: - Eights of butter
How many eights of butter (1/8 of kg = 125 g) can be stored in a box with dimensions of 4 dm, 2 dm, and 1.8 dm if an eighth of butter has dimensions of 8 cm, 5 cm, 3 cm? - What are 3
What are the two digits that, when inserted in the blank spaces, will make 234 _ _ divisible by 8? - Four multiples
Four multiples of 6, he writes the following 12 24 56 72, which is correct? - Notebook student
At the beginning of the year, they received 600 notebooks. There were twice as many unlinked as lined ones. How many students are in the class when each has 16 unlined notebooks? - Divisibility feature test
Which number from 1 to 10 does not divide evenly into 2,520? Use divisibility rules to solve. - Consecutive odd sum The sum of three consecutive odd numbers is 183. What is the largest of them?
- Consecutive odd numbers
The sum of two consecutive odd numbers is 184. What are these numbers? - The dice
Find the probability that a number divisible by two or three will fall when the dice are rolled. - Three-digit numbers How many are all three-digit numbers made up of digits 0,2,5,7 and are divisible by nine if the digits can be repeated?
- Three-digit number creation How many different three-digit numbers divisible by five can we create from the digits 2, 4, and 5? The numerals can be repeated in the created number.
- We roll
We roll two dice A. - what is the probability that the sum of the falling numbers is at most 4 B. - is at least 10 C. - is divisible by 5? - Number comparison Write a number 28793 smaller than the largest 5-digit number composed of various odd numbers.
- Number comparison Write the number 937289 larger than the smallest 6-digit odd number.
- Five-digit odd numbers How many five-digit odd numbers exist?
- Number divisibility What is the probability of any two-digit natural number a) is divisible by seven, b) is divisible by nine, c) is not divisible by five.
- Five-digit number Anna thinks of a five-digit number not divisible by three or four. If he increments each digit by one, it gets a five-digit number divisible by three. If he reduces each digit by one, he gets a five-digit number divisible by four. If it swaps any two digi
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