9000085609
Level:
A
Given the number \(45\: 875\),
round this number to nearest thousands, nearest hundreds and subtract the results.
\(100\)
\(200\)
\(1\: 000\)
\(0\)
Elementary arithmetics
9000085610
Level:
A
Given the number \(82\: 361\),
round this number to nearest thousands, nearest hundreds and subtract the results.
\(400\)
\(300\)
\(200\)
\(100\)
9000085604
Level:
A
Find the sum of the three numbers obtained by rounding the number
\(2\: 013\) to the
nearest tens, hundreds and thousands.
\(6\: 010\)
\(6\: 000\)
\(6\: 020\)
\(6\: 030\)
9000085603
Level:
A
Find the sum of the three numbers obtained by rounding the number
\(5\: 316\) to the
nearest tens, hundreds and thousands.
\(15\: 620\)
\(15\: 610\)
\(15\: 560\)
\(15\: 580\)
9000084904
Level:
B
From the following list find the number which has just three proper divisors.
\(49\)
\(21\)
\(75\)
\(100\)
\(250\)
9000084905
Level:
B
In the following list find the number such that the prime factorization of this
number contains just two different primes or powers of two different primes.
\(100\)
\(5\)
\(25\)
\(120\)
\(121\)
9000084910
Level:
B
In the following list find the number such that the prime factorization of this
number contains only one prime.
\(125\)
\(15\)
\(100\)
\(250\)
\(768\)
9000084909
Level:
B
Among the following numbers, find the number so that in its factorization into primes each prime is squared.
\(36\)
\(24\)
\(120\)
\(360\)
\(512\)
9000084908
Level:
B
From the following list of numbers choose the one that has in its prime factorization the highest power of a prime.
\(1\: 024\)
\(21\)
\(100\)
\(330\)
\(486\)
9000084907
Level:
B
Among the following numbers, find the one that has the greatest number of different primes in its prime factorization.
\(330\)
\(21\)
\(100\)
\(486\)
\(1\: 024\)