
Conjuntos Numéricos
Authored by Marcio Santana
Mathematics
12th Grade
Used 1+ times

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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O conjunto dos números naturais é representado por qual letra?
A
N
B
C
Answer explanation
The set of natural numbers is represented by the letter 'N', which stands for 'Naturals'.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o conjunto numérico que inclui os números positivos, negativos e o zero?
Conjunto dos números irracionais
Conjunto dos números naturais
Conjunto dos números inteiros
Conjunto dos números racionais
Answer explanation
The correct choice is the set of integers because it includes positive numbers, negative numbers, and zero.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dê um exemplo de número racional que não seja inteiro.
1/2
3/4
7/8
5/6
Answer explanation
The correct choice is 1/2 because it is a rational number that is not an integer, as it is a fraction with a numerator and denominator.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O número pi (π) é um exemplo de qual tipo de número?
Número par
Número inteiro
Número primo
Número irracional
Answer explanation
The number pi (π) is an example of an irrational number because it cannot be expressed as a simple fraction and has an infinite, non-repeating decimal expansion.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O conjunto dos números reais inclui quais outros conjuntos numéricos?
Naturais, Inteiros, Racionais e Irracionais
Complexos
Negativos
Fracionários
Answer explanation
The set of real numbers includes natural, integer, rational, and irrational numbers, making it a superset of these numeric sets.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quanto é a soma de 5 e -3?
0
-8
10
2
Answer explanation
The sum of 5 and -3 is calculated as 5 + (-3) = 2. Therefore, the correct answer is 2.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o resultado da multiplicação de -2 por 4?
2
0
-8
-6
Answer explanation
The correct result of multiplying -2 by 4 is -8. When you multiply a negative number by a positive number, the result is negative.
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