Assignment operators in C++ - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to assign the value 10 to the variable x.

C++

int x [1] 10;

Drag options to blanks, or click blank then click option'

A=

B+=

C-=

D*=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '+=' instead of '=' will add to the existing value instead of assigning.

Using '*=' or '-=' will perform multiplication or subtraction assignment, not simple assignment.

The assignment operator = assigns the value on the right to the variable on the left.

2fill in blank

medium

Complete the code to add 5 to the variable count using an assignment operator.

C++

count [1] 5;

Drag options to blanks, or click blank then click option'

A=

B*=

C-=

D+=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '=' will overwrite the value instead of adding.

Using '-=' or '*=' will subtract or multiply instead of adding.

The += operator adds the right value to the variable and assigns the result back to it.

3fill in blank

hard

Fix the error in the code to multiply total by 3 using an assignment operator.

C++

total [1] 3;

Drag options to blanks, or click blank then click option'

A+=

B=

C*=

D-=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '=' will overwrite the value instead of multiplying.

Using '+=' or '-=' will add or subtract instead of multiplying.

The *= operator multiplies the variable by the right value and assigns the result back.

4fill in blank

hard

Complete the code to subtract 4 from score and assign the result back.

C++

score [1] 4 ;

Drag options to blanks, or click blank then click option'

A-=

B+=

C;

D=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '+=' will add instead of subtract.

Forgetting the semicolon causes a syntax error.

The -= operator subtracts and assigns, and the semicolon ends the statement.

5fill in blank

hard

Fill both blanks to divide value by 2 and assign the result back, then print it.

C++

value [1] 2 ;
std::cout [2] value << std::endl;

Drag options to blanks, or click blank then click option'

A/=

B;

C<<

D=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '=' instead of '/=' will overwrite without dividing.

Forgetting semicolons causes syntax errors.

Using '=' instead of '<<' for printing causes errors.

Use /= to divide and assign, end the first statement with ;, and use << to print.