Questões de EFAI Matemática

THE MATH TEACHER CHALLENGED HER STUDENTS FROM $2$ND GRADE TO IDENTIFY AND COUNT THE CIRCLES AT THE DRAWING ON THE BOARD MADE ONLY WITH SHAPES.

Available at: https://www.shutterstock.com/pt/image-vector/green-wooden-board-teaching-books-school-1929907079. Accessed 12 Dec. 2022.

TO WIN THE CHALLENGE, HOW MANY CIRCLES SHOULD STUDENTS IDENTIFY IN THE DRAWING?

BETO MADE A DRAWING USING ONLY TRIANGLES AND SQUARES:

HOW MANY RED TRIANGLES DID BETO DRAW?

All tiles on the wall of a kitchen will be replaced. To do this, the person in charge needs to count how many tiles this wall has, even if there are some stains making it impossible to see some of them, as shown in the following image:

Available at: https://shre.ink/kAcZ/https://shre.ink/kAcv. Accessed 7 Dec. 2022.

How many tiles does the wall above have in total?

MARIA MAKES TAKEOUTS OF DIFFERENT SIZES TO SELL. TO REPLACE HER STOCK OF PACKAGING, SHE WENT TO THE STORE AND OBSERVED THE SIZES THAT SHE COULD BUY:

MARIA IS GOING TO BUY THE PACKAGE THAT FITS THE LEAST QUANTITY OF FOOD.

WHICH PACKAGE SHOULD MARIA BUY?

TEDDY BEARS ARE SOLD IN PACKAGES IN A STORE. OBSERVE THE IMAGE BELOW:

WHICH IS THE HEAVIEST PACKAGE?

MARCELA GOT SOME CONTAINERS OF WATER FROM HER HOUSE. OBSERVE THEM BELOW:

WHICH CONTAINER HAS MORE WATER?