If, elsif, else statements in Ruby - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print "Positive" if the number is greater than zero.

Ruby

number = 5
if number [1] 0
  puts "Positive"
end

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

A<

B<=

C==

D>

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<' instead of '>' causes the condition to check for numbers less than zero.

Using '==' checks for equality, not greater than.

The condition should check if number is greater than zero using >.

2fill in blank

medium

Complete the code to print "Zero" if the number equals zero.

Ruby

number = 0
if number > 0
  puts "Positive"
elsif number [1] 0
  puts "Zero"
end

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

A>

B==

C<

D!=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '>' or '<' instead of '==' will not correctly check for zero.

Using '!=' checks for not equal, which is incorrect here.

The elsif condition should check if number is equal to zero using ==.

3fill in blank

hard

Fix the error in the code to print "Negative" if the number is less than zero.

Ruby

number = -3
if number > 0
  puts "Positive"
elsif number == 0
  puts "Zero"
else
  puts "[1]"
end

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

ANegtive

Bnegative

CNegative

DNeg

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase 'negative' when the output expects capitalized.

Misspelling the word as 'Negtive'.

The string should be exactly "Negative" to match the expected output.

4fill in blank

hard

Fill both blanks to complete the code that prints "Even" if the number is even, otherwise "Odd".

Ruby

number = 4
if number [1] 2 == 0
  puts "Even"
else
  puts "[2]"
end

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

A%

BOdd

Codd

D==

Attempts:

3 left

💡 Hint

Common Mistakes

Using '==' instead of '%' for checking evenness.

Printing 'odd' with lowercase instead of 'Odd'.

The modulo operator % checks the remainder. If remainder is zero, number is even. Otherwise, print "Odd".

5fill in blank

hard

Fill all three blanks to complete the code that categorizes a number as positive, zero, or negative.

Ruby

number = -1
if number [1] 0
  puts "Positive"
elsif number [2] 0
  puts "Zero"
else
  puts "[3]"
end

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

A>

B==

CNegative

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping '<' and '>' operators.

Using lowercase 'negative' instead of 'Negative'.

Using '!=' instead of '==' for zero check.

The first condition checks if number is greater than zero, second checks equality to zero, else prints "Negative".