In this class we will learn to do math with our daily money.
As I know you’ve all seen money like coins and bills, so we’ll go straight to the exercises.
1) What value are you seeing in each value group?
2) Roberto and Renata earn, together, R$ 3,600.00 per month. Roberto earns R$ 940.00 more than Renata.
a) From the total of the two salaries, subtracting what Roberto earns more, how much is left to divide between them?
b) How much does Renata earn?
c) How much does Roberto earn?
3) Tiago’s father’s car spends R$ 1.00 on gasoline every 1 minute. To take Tiago to school, his father leaves home at 1:45 p.m. and arrives there at 1:55 p.m. Knowing that his father only has R$ 0.50 coins in his pocket, how many coins should he spend on gasoline on this route?
a) 5 coins
b) 10 coins
c) 15 coins
d) 20 coins
4) Lita bought an ice cream for R$ 1.55. What currencies did it use to make this purchase?
a) 1 coin of 1 real, 1 coin of 25 cents and 1 coin of 10 cents
b) 1 coin of 1 real, 1 coin of 25 cents and 2 coins of 10 cents
c) 1 coin of 1 real, 2 coins of 25 cents and 1 coin of 5 cents
d) 1 coin of 1 real, 2 coins of 25 cents and 1 coin of 10 cents
5) During the whole year, Aliene saved in her piggy bank 19 coins of 1 real, 9 coins of 50
cents, 20 coins of 25 cents, 16 coins of 10 cents and 13 coins of 5 cents. How many reais will she have when she opens the piggy bank?
a) R$ 32.25
b) R$ 32.35
c) R$ 33.25
d) R$ 33.35
6) Tadeu went to the mall’s cinema. Before going in to watch the movie, he went to buy popcorn.
The bag of popcorn costs R$ 2.50 and he had three coins of R$ 1.00. How much did he get in change?
Respostas