Questões de EFAI Matemática

BEATRIZ GOSTA DE PRATICAR ESPORTES NA QUADRA PERTO DE SUA CASA. OBSERVE A BOLA DE FUTEBOL QUE ELA GANHOU.

Disponível em: https://www.shutterstock.com/pt/image-vector/soccer-ball-football-realistic-isolated-on-400227679. Acesso em 2 dez. 2022.

A BOLA DE FUTEBOL É REPRESENTADA POR QUAL FORMA GEOMÉTRICA?

Victor is making a supermarket list. Next to each item in the list, he put the price of the product. Victor has not calculated the total price for his list yet.

The total value of Victor’s list is

The following table shows the price of products from a newsstand:

A customer bought a pack of stickers, a lollipop and a candy, without change.

What is the correct representation of the price paid for the products?

Fabiana would like to exchange the coins she has been saving for bills. She has twelve US$ 1 coins, eight $50$-cent coins, eight $25$-cent coins, and twenty $10$-cent coins.

What bill will she receive for exchanging her coins?

Bethania went to the café. After finishing her coffee, she made the payment and needed change equal to $80$ cents. The employee responsible for the payment said he only had coins.

What is the correct representation of the change received by Bethania?

Júlia and Kamila are sisters and received money from their mother to buy snacks at the school cafeteria. Observe how much each girl received:

Who received more money?