3.1.1.3 Arithmetic operations in a programming language.

Question 1

Addition.

Answer 1

int num = 7 + 7;

Question 2

Subtraction

Answer 2

int num = 7 - 4;

Question 3

Multiplication.

Answer 3

int num = 7*5;

Question 4

Real/Float Division.

Answer 4

int num1 = 9;
int num2 = 9;
Float v = (float) num1/num2;

Question 5

Integer Division including Remainders.

Answer 5

int division:

int num = 7 /1;

Remainders:
int i = 10;
int j = 3;

int k = i%j;

Question 6

Exponentiation.

Answer 6

An exponent is a quantity representing th power to which a given expression is to be raised e.g. 5^4

Math.pow(base , exponent );

Question 7

Rounding.

Answer 7

Math,round( );

Question 8

What is truncation?

Answer 8

To trim or cut some digits of a float or double-type number or some character of a string from the right. Cn also be used to truncate the decimal portion completely that makes it an integer.

Question 9

Define the syntax for truncation.

Answer 9

truncateNumber(num, digits);