Arithmetic operators in R Programming - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to add two numbers and print the result.

R Programming

result <- 5 [1] 3
print(result)

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

A+

B-

C*

D/

Attempts:

3 left

💡 Hint

Common Mistakes

Using - instead of + will subtract instead of add.

Using * or / will multiply or divide, not add.

The + operator adds two numbers in R.

2fill in blank

medium

Complete the code to multiply two numbers and print the result.

R Programming

result <- 7 [1] 4
print(result)

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

A-

B+

C*

D/

Attempts:

3 left

💡 Hint

Common Mistakes

Using + or - will add or subtract instead of multiply.

Using / will divide instead of multiply.

The * operator multiplies two numbers in R.

3fill in blank

hard

Fix the error in the code to correctly divide two numbers and print the result.

R Programming

result <- 10 [1] 2
print(result)

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

A/

B-

C+

D*

Attempts:

3 left

💡 Hint

Common Mistakes

Using * multiplies instead of divides.

Using + or - adds or subtracts instead of divides.

The / operator divides the first number by the second in R.

4fill in blank

hard

Fill both blanks to create a named vector where each number is squared only if it is greater than 3.

R Programming

[1] <- 1:5; squares <- setNames([2]^2[[1] > 3], [1][[1] > 3])

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

Ax

Bi

Cj

Dnum

Attempts:

3 left

💡 Hint

Common Mistakes

Using different variable names for the name and the value causes errors.

Using a variable not defined in the loop causes errors.

Using the same variable i for the name and the value allows squaring numbers greater than 3.

5fill in blank

hard

Fill all three blanks to create a vector of numbers from 1 to 5, then subtract 2 from each number and print the result.

R Programming

numbers <- [1](1, 2, 3, 4, 5)
result <- numbers [2] [3]
print(result)

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

Ac

B-

C2

Dseq

Attempts:

3 left

💡 Hint

Common Mistakes

Using seq instead of c changes the vector creation.

Using + instead of - adds instead of subtracts.

Using a wrong number instead of 2 changes the result.

c() creates a vector, - subtracts, and 2 is the number to subtract.