9000085603
Level:
A
Find the sum of the three numbers obtained by rounding the number
\(5\: 316\) to the
nearest tens, hundreds and thousands.
\(15\: 620\)
\(15\: 610\)
\(15\: 560\)
\(15\: 580\)
Elementary arithmetics
9000085601
Level:
A
Evaluate the following numbers and round to the nearest tens.
\[
10^{2} + 11^{2} + 12^{2} + 13^{2} + 14^{2}
\]
\(730\)
\(720\)
\(740\)
\(750\)
9000085605
Level:
B
Find the product of all one-digit primes and round to nearest hundreds.
\(200\)
\(100\)
\(300\)
\(400\)
9000085606
Level:
B
Find the product of all divisors of \(12\)
and round to nearest hundreds.
\(1\: 700\)
\(1\: 200\)
\(600\)
\(100\)
9000085607
Level:
A
Given numbers \(8\: 175\)
and \(3\: 926\),
find the difference between the sum of these numbers rounded to the nearest tens and the sum of these numbers rounded to the nearest hundreds.
\(10\)
\(20\)
\(100\)
\(0\)
9000085608
Level:
A
Given numbers \(456\: 138\)
and \(321\: 814\),
find the difference between the sum of these numbers rounded to the nearest tens and the sum of these numbers rounded to the nearest hundreds.
\(50\)
\(100\)
\(1\: 000\)
\(0\)
9000085609
Level:
A
Given the number \(45\: 875\),
round this number to nearest thousands, nearest hundreds and subtract the results.
\(100\)
\(200\)
\(1\: 000\)
\(0\)
9000084901
Level:
B
Which of the following numbers is a prime?
\(17\)
\(1\)
\(27\)
\(91\)
\(289\)
9000084902
Level:
B
In the following list find the set which does not contain any prime number.
\(91,\ 243\)
\(13,\ 100\)
\(2,\ 4\)
\(29,\ 81\)
\(101,\ 211\)
9000084903
Level:
B
In the following list find the set which contains only prime numbers.
\(13,\ 131\)
\(1,\ 31,\ 211\)
\(289,\ 291\)
\(17,\ 169\)
\(51,\ 97\)