
Multiplicação Challenge
Mathematics
8th Grade
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a propriedade da multiplicação que afirma que a ordem dos fatores não altera o produto?
Propriedade distributiva
Propriedade identidade
Propriedade comutativa
Propriedade associativa
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como se multiplica duas frações? Dê um exemplo.
Exemplo: 1/2 * 2/3 = (1*2)/(2*3) = 2/6
Exemplo: 1/2 + 2/3 = (1*2)/(2*3) = 2/6
Exemplo: 1/2 - 2/3 = (1*2)/(2*3) = 2/6
Exemplo: 1/2 / 2/3 = (1*2)/(2*3) = 2/6
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcule a multiplicação: 3.5 x 2.4
10.2
8.4
6.3
7.9
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o resultado da multiplicação de 10³ x 104?
105
108
107
106
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explique a propriedade dos expoentes que diz que a potência de um produto é igual ao produto das potências.
A propriedade dos expoentes que diz que (a + b)^n = a^n + b^n.
A propriedade dos expoentes que diz que a^(n * m) = a^n * a^m.
A propriedade dos expoentes que diz que (a * b)^n = a^n * b^n.
A propriedade dos expoentes que diz que (a / b)^n = a^n / b^n.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o resultado de 1/2 x 3/4?
3/8
2/3
5/8
1/4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcule a multiplicação: 6.7 x 8.9
59.63
62.81
47.45
53.23
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