Questões de EFAI Matemática

NA AULA DE MATEMÁTICA, O PROFESSOR DESENHOU FORMAS GEOMÉTRICAS NA LOUSA, COMO MOSTRA A IMAGEM ABAIXO.

Disponível em: https://www.shutterstock.com/pt/image-photo/empty-green-chalkboard-texture-hang-on-674258101. Acesso em 16 nov. 2022.

QUAL É A FORMA GEOMÉTRICA QUE MAIS APARECE NA LOUSA?

FÁBIO GANHOU FIGURINHAS GEOMÉTRICAS DE SEU PAI. OBSERVE UMA DELAS:

A FIGURINHA DE FÁBIO TEM A FORMA DE UM

In one activity, the teacher was dictating decimal numbers, and the students needed to mark on their notebooks exactly the number told by the teacher. One of the numbers said was:

“Thirty-two integers and four hundredths”

The correct recording of the number dictated by the teacher is

Planet Earth is the third closest planet to the Sun and it has a diameter of $12,742km$ long.

Available at: https://www.shutterstock.com/pt/image-photo/planet-earth-clouds-europe-part-asia-1291831012. Accessed 9 Nov. 2022.

What is the place value of the digit $1$ in the Earth’s diameter, measured in kilometer?

Every day thousands of planes fly through the sky doing all kinds of air transport. According to the flight monitoring website FlightRadar24, the record for the highest number of flights ever recorded in one day is equal to $202,157$ flights worldwide.

Available at: https://www.shutterstock.com/pt/image-vector/airplane-flying-leave-blue-dashed-trace-563622796. Accessed 9 Nov. 2022.

The writing, in words, of the number of flights shown in the text is

In a Math class, the teacher drew a number line on the board and four numbers represented by $A,B,C$ and $D$, as shown in the image:

Then, the students should identify the numbers represented by the letters.

What number is represented by the letter $B$?