Desafios com Números Racionais
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
Cristina Martins
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que caracteriza um número racional?
Um número que não pode ser expresso como uma fração.
Um número que é sempre inteiro.
Um número que pode ser expresso como a razão de dois inteiros.
Um número que possui apenas um dígito.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Converta a dízima 0,75 em fração.
1/2
2/3
5/6
3/4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes frações representa uma dízima infinita?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Converta a dízima periódica 0,(6) em fração.
2/3
3/4
5/6
1/2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Classifique a dízima 0,(142857) como finita ou periódica.
infinita
periódica
irracional
finita
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O círculo central de um campo de futebol tem 9,15 m de raio. O perímetro do círculo central, em metros, arredondado às centésimas é:
28,75 m
28,74 m
57,49 m
57,50 m
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O Sr. Augusto pretende semear relva num terreno retangular com 15 m de comprimento e 6,3 m de largura. O tipo de relva que pretende semear, vende-se em embalagens que dá para semear 35 m2 .
Quantas embalagens precisa de comprar?
1
2
3
4
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