Questões de EFAI Matemática

OBSERVE AS FORMAS GEOMÉTRICAS A SEGUIR:

QUANTAS APRESENTAM QUATRO LADOS?

Otávio was watching an ant walking freely on the table. At a certain moment, the ant stopped on top of his ruler, as shown in the image:

A number that can represent the position of the ant on the ruler is

In a construction company, a truck can carry $2,850$ bricks at its maximum capacity each turn. To take the bricks to the last construction, $28$ trips were necessary at their maximum capacity.

Available at: https://www.shutterstock.com/pt/image-vector/trucks-construction-equipment-vector-illustration-1934124632. Accessed 9 Nov. 2022.

How many bricks did the truck take to the last construction?

In one week, a bakery sold $487$ loaves of bread. In the second week, the same bakery sold $423$ loaves of bread; in the third week, it sold $521$ loaves of bread and, in the last week of the month, because of the slow movement, it sold only $129$ loaves of bread.

Available at: https://www.shutterstock.com/pt/image-vector/cartoon-color-character-people-man-bakery-1955316664. Accessed 9 Nov. 2022.

Altogether, how many loaves of bread did this bakery sell during a period of four weeks?

Look at a clothing store window.

Available at: https://www.shutterstock.com/pt/image-vector/woman-man-clothes-accessories-collection-fashion-1488991403. Accessed 9 Nov. 2022.

A customer enters the store with the intention of buying a shirt and sneakers, and realizes that he has R$ 210.00 in his wallet.

Can the customer buy a shirt and sneakers?

The teacher brought a grocery list and common prices from a supermarket in the United States to her class:

US$ 1.00 equals to R$ 4.00.

The price of the grocery list, in reais (R$), is