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CS1 Python Subgoals

Section 3.3 Assessment: Expressions

Subgoals for writing expressions:.

  1. Craft name of variable
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  2. Determine operators, function calls, or method calls that will produce the value of variable
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  3. Decide order of operands and operators
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    1. Operators and operands must be compatible
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    2. Decompose as necessary
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Exercises Exercises

    1.

    Q1: What is the value of beta after the following code is executed?
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    alpha = 3
beta = 7
gamma = -3.5
delta = '5'
epsilon = 'numbers'                    
beta //= alpha
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    2.

    Q2: Is the following code valid?
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    alpha = 3
beta = 7
gamma = -3.5
delta = '5'
epsilon = 'numbers'                    
gamma += beta
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    3.

    Q3: What is the value of zeta after the following code is executed?
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    alpha = 3
beta = 7
gamma = -3.5
delta = '5'
epsilon = 'numbers'                    
zeta = epsilon or alpha
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    4.

    Q4: What is the value of eta after the following code is executed?
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    alpha = 3
beta = 7
gamma = -3.5
delta = '5'
epsilon = 'numbers'                    
eta = alpha*delta
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    5.

    Q5: What is the value of theta after the following code is executed?
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    alpha = 3
beta = 7
gamma = -3.5
delta = '5'
epsilon = 'numbers'                    
theta = gamma < beta + delta
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