Questões de EFAI Matemática

PEDRO E JULIANA ESTAVAM BRINCANDO DE BANCO. OBSERVE AS MOEDAS DE PEDRO:

ELE PEDIU QUE JULIANA TROCASSE TODAS SUAS MOEDAS POR UMA ÚNICA MOEDA.

POR QUAL MOEDA JULIANA PODE TROCAR?

FABIANA WENT TO BUY TWO DRESSES AT A STORE, ONE IN RED COLOR AND THE OTHER IN BLUE. THE FOLLOWING PICTURE SHOWS THE PRICE OF EACH PRODUCT:

IF FABIANA TAKES BOTH DRESSES, HOW MUCH WILL SHE SPEND?

BETO WENT TO THE SUPERMARKET AND SAW THAT THE TOOTHPASTE WAS ON SALE, COSTING ONLY $3$ REAIS PER PACKAGE. SO, HE DECIDED TO BUY FIVE PACKAGES.

HOW MANY REAIS DID BETO PAY FOR HIS PURCHASE?

AFONSO WENT TO THE SUPERMARKET WITH HIS FATHER AND SAW A PRICE CHART OF SOME PRODUCTS:

IF AFONSO AND HIS FATHER BUY A BAG OF RICE AND A PACK OF NOODLES, HOW MUCH WILL THEY SPEND?

LARISSA RECEIVES AN AMOUNT OF MONEY FROM HER MOTHER EVERY DAY TO SPEND IN THE SCHOOL CAFETERIA. OBSERVE THE FOLLOWING VALUE.

LARISSA WILL SAVE THE MONEY SHE RECEIVES INSTEAD OF SPENDING IT FOR SIX DAYS.

HOW MUCH WILL LARISSA SAVE IN TOTAL?

ALINE DECIDED TO OPEN HER PIGGY BANK WHERE SHE KEEPS COINS AND FOUND TEN CENT COINS OF $10$ CENTAVOS.

WHAT WAS THE VALUE THAT ALINE HAD IN HER PIGGY BANK?