Questões de EFAI Matemática

Every day Juliana makes chocolate truffles to sell in her bakery. Each chocolate truffle costs $50$ cents. Last Friday, $12$ chocolate truffles were sold.

How much did Juliana earn selling chocolate truffles last Friday?

Vários ingredientes são necessários para a receita de um bolo. O pai de Fabrício comprou todos os ingredientes necessários e gastou $17$ reais e $40$ centavos. Ele pagou com uma nota de R$ 20,00.

Qual é o valor do troco recebido pelo pai de Fabrício?

Todos os dias Juliana faz brigadeiros para vender em sua padaria. Cada brigadeiro custa $50$ centavos. Na última sexta-feira foram vendidos $12$ brigadeiros.

Quantos reais Juliana ganhou vendendo brigadeiros na última sexta-feira?

Camila went to the bakery to buy bread with her father and was attentive to the moment of payment. The total came to US$ 6.25, and her father paid with a US$ 10.00 bill, receiving some change. When they arrived home, Camila wanted to record the amount of change received by her father.

The correct writing, in full, of the value recorded by Camila is

Gabriela made an agreement with her mother: every week she would do some housework and her mother would have to pay her R$ 12.00. Her mother agreed, as long as Gabriela did the housework every week of the year, without skipping a single one.

Consider a year with $52$ weeks.

If Gabriela does the housework every week, she will receive a year’s worth of:

In a sports store, a PE teacher is going to buy 1 soccer ball that costs US$ 44.00, $1$ volleyball ball that costs US$ 50.00, $1$ basketball ball that costs US$ 79.00 and $2$ handball balls that cost US$ 39.00 each.

How much did the PE teacher pay in total?