
Desvendando Números Negativos
Authored by FLAVIA SILVA
Other
7th Grade

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
A temperatura caiu de 4°C para -9°C. Para calcular a diminuição, subtraímos: -9 - 4 = -13. Portanto, a temperatura diminuiu 13°C, que é a resposta correta.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
O balão começa a 15 m acima do solo e desce 28 m. A nova posição é 15 - 28 = -13 m, indicando que está 13 m abaixo do solo. Portanto, a resposta correta é -13 m.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
Ana tinha uma dívida de R$ 80,00 e pagou R$ 35,00. Para encontrar a dívida restante, subtraímos 35 de 80: 80 - 35 = 45. Como a dívida é negativa, o valor restante é -45, que é a resposta correta.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
A temperatura inicial era -20°C. Após a pane, subiu 15°C. Para encontrar a nova temperatura, somamos: -20 + 15 = -5°C. Portanto, a nova temperatura é -5°C.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
O submarino está a -30 metros e desce mais 25 metros. Para calcular a nova profundidade, somamos -30 e -25, resultando em -55 metros. Portanto, a profundidade atual é -55 m.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
O time começa com -4 pontos e perde mais 6 pontos. Para calcular a pontuação final, somamos: -4 + (-6) = -10. Portanto, a pontuação final do time será -10.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
O saldo inicial era -22 reais. Após o depósito de 12 reais, o novo saldo é -22 + 12 = -10 reais. Portanto, a resposta correta é -10.
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