Preview (20 questions)
1 Question
πριν 30 δευτερόλεπτα
Q.

Every rational number is a real number.


Right

Wrong

2 Question
πριν 30 δευτερόλεπτα
Q.

The sum of odd numbers up to 240 is 11400.


Right

Wrong

3 Question
πριν 30 δευτερόλεπτα
Q.

There are infinite rational numbers in between any two numbers.


Right

Wrong

4 Question
πριν 30 δευτερόλεπτα
Q.

0 is not a rational number.


Right

Wrong

5 Question
πριν 30 δευτερόλεπτα
Q.

The irrational number between 2 and 2.5 is √5.


Right

Wrong

6 Question
πριν 30 δευτερόλεπτα
Q.

The decimal representation of the rational number is always terminating.


Right

Wrong

7 Question
πριν 30 δευτερόλεπτα
Q.

2+√3 is a rational number.


Right

Wrong

8 Question
πριν 30 δευτερόλεπτα
Q.

The sum of the digits of the number 65889 is 36.


Right

Wrong

9 Question
πριν 30 δευτερόλεπτα
Q.

The unit digit in the product of 853 x 1346 x 452 x 226 is 7.


Right

Wrong

10 Question
πριν 30 δευτερόλεπτα
Q.

0 can be written in the form of p/q.


Right

Wrong

11 Question
πριν 30 δευτερόλεπτα
Q.

The greatest number of 4 digits, divisible by 15, 25, 24, and 80 is 8400.


Right

Wrong

12 Question
πριν 30 δευτερόλεπτα
Q.

9960 is the greatest four-digit number divisible by 2, 3, 4, 5, and 6.


Right

Wrong

13 Question
πριν 30 δευτερόλεπτα
Q.

The sum of the factors of 3240 is 10890.


Right

Wrong

14 Question
πριν 30 δευτερόλεπτα
Q.

The difference between the prime numbers 43 and 47 is 2.


Right

Wrong

15 Question
πριν 30 δευτερόλεπτα
Q.

71 and 73 are twin Primes.


Right

Wrong

16 Question
πριν 30 δευτερόλεπτα
Q.

The total number multiple of both 3 and 4 from 1 to 100 is 50.


Right

Wrong

17 Question
πριν 30 δευτερόλεπτα
Q.

4√6 + 7√6 = 4√12


Right

Wrong

18 Question
πριν 30 δευτερόλεπτα
Q.

(√12 + √10 - √2) is a number that is irrational.


Right

Wrong

19 Question
πριν 30 δευτερόλεπτα
Q.

A rational number (-6 / 8) is also known as a fraction.


Right

Wrong

20 Question
πριν 30 δευτερόλεπτα
Q.

√6 x √36 = 6√6


Right

Wrong