
1EM Diagnóstica 01/2023
Authored by Sergio DaltosoJr
Mathematics
10th Grade
Used 11+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Se 4 pratos custam 52 reais ao todo, então 12 desses pratos custam:
72 reais.
104 reais.
130 reais.
156 reais.
Answer explanation
Se 4 pratos custam 52 reais ao todo, então 12 desses pratos custarão 3 vezes esse valor, ou seja, 3·52 = 156 reais.
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Se Catarina dividir 324 reais igualmente entre seus 3 sobrinhos, quantos reais cada um receberá?
Answer explanation
Basta efetuar a divisão de 324 por 3, obtendo 108 reais.
Mentalmente, 324 = 300 + 24. 300 por 3 dá 100 e 24 por 3 dá 8, então cada sobrinho receberá 100 + 8 = 108 reais.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Um rolo de tela de arame possui 12m. Quantos rolos desses são necessários para cercar um terreno retangular de medidas 8m × 11m?
36
10
4
3
Answer explanation
Para cercar o terreno, são necessários 8 + 11 + 8 + 11 = 38m de tela de arame. Como cada rolo tem 12m, serão necessários 4 rolos para cercar o terreno.
Veja que 3 rolos darão 36m de tela, o que é insuficiente para cercar todo o terreno.
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
x
y
z
w
Answer explanation
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Seis pedreiros finalizam uma obra em 8 dias. Em quantos dias 3 pedreiros terminariam essa mesma obra, trabalhando no mesmo ritmo?
4 dias
8 dias
12 dias
16 dias
Answer explanation
Com menos pedreiros trabalhando, o tempo necessário para finalizar a obra será maior.
Assim, como o número de pedreiros caiu pela metade, eles terminarão a obra no dobro do tempo, isto é, em 2·8 = 16 dias.
6.
MULTIPLE SELECT QUESTION
1 min • Ungraded
Assinale mais de uma resposta, se for o caso:
Você se lembra de ter estudado quais desses assuntos?
Fórmula de Báskara
Teorema de Pitágoras
Notação Científica
Plano Cartesiano
Seno, Cosseno e Tangente
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