Chapters

- Exercise 1
- Exercise 2
- Exercise 3
- Exercise 4
- Exercise 5
- Exercise 6
- Exercise 7
- Exercise 8
- Exercise 9
- Exercise 10
- Exercise 11
- Solution of exercise 1
- Solution of exercise 2
- Solution of exercise 3
- Solution of exercise 4
- Solution of exercise 5
- Solution of exercise 6
- Solution of exercise 7
- Solution of exercise 8
- Solution of exercise 9
- Solution of exercise 10
- Solution of exercise 11

## Exercise 1

Given the numbers , , and form all possible numbers of three different figures, arrange them from low to high and add them.

## Exercise 2

The quotient of an exact division is , and the divisor . What is the dividend?

## Exercise 3

The quotient division is , the divisor, , and the dividend, . What is the remainder?

## Exercise 4

Peter bought a farm for dollars and after selling it he made a profit of dollars. How much did he sell it for?

## Exercise 5

With the money that I have now and dollars more, I could pay a debt of dollars and I would still have dollars. How much money I have?

## Exercise 6

We want to buy Kg of sardines at a rate of dollars per Kg. If postage cost dollars and I want to earn dollars from the sale, how much should each kilogram of sardines be sold for?

## Exercise 7

How many years are in days? Consider that a year has days.

## Exercise 8

Peter wants to buy a car. The store will offer two models: a two-door and a four-door. In both models, the available colors are: white, blue, red, gray, and green. Calculate the number of possible selections that Peter has.

## Exercise 9

A pool contains liters of water. How long does it take to be filled by a hose that can distribute liters per minute?

## Exercise 10

An airport has a plane landing every minutes. How many planes land in one day?

## Exercise 11

In a residential complex, there are inhabitants, and there is a tree for every inhabitants. How many trees are there in the complex? How many trees will have to be planted to have a tree for every people?

## Solution of exercise 1

Given the numbers , , and form all possible numbers of three different figures, arrange them from low to high and add them.

## Solution of exercise 2

The quotient of an exact division is , and the divisor . What is the dividend?

## Solution of exercise 3

The quotient division is , the divisor, , and the dividend, . What is the remainder?

## Solution of exercise 4

Peter bought a farm for dollars and after selling it he made a profit of dollars. How much did he sell it for?

dollars

## Solution of exercise 5

With the money that I have now and dollars more, I could pay a debt of dollars and I would still have dollars. How much money I have?

dollars

## Solution of exercise 6

We want to buy Kg of sardines at a rate of dollars per Kg. If postage cost dollars and I want to earn dollars from the sale, how much should each kilogram of sardines be sold for?

dollars

## Solution of exercise 7

How many years are in days? Consider that a year has days.

years

## Solution of exercise 8

Peter wants to buy a car. The store will offer two models: a two-door and a four-door. In both models, the available colors are: white, blue, red, gray, and green. Calculate the number of possible selections that Peter has.

selections

## Solution of exercise 9

A pool contains liters of water. How long does it take to be filled by a hose that can distribute liters per minute?

minutes

hours

## Solution of exercise 10

An airport has a plane landing every minutes. How many planes land in one day?

minutes per day

planes to the day

## Solution of exercise 11

In a residential complex, there are inhabitants, and there is a tree for every inhabitants. How many trees are there in the complex? How many trees will have to be planted to have a tree for every people?

trees in the residential complex.

trees total, if every inhabitants have a tree.

trees

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