True, false, and in between

Computing · Programming · ages 14-15

Name ______________________ Date ____________

When score is 12, the test score > 10 is true.
Circle one: True False
Which values can a Boolean hold?
- Any whole number
- True or False
- Any text
What does True and True give?
- True
- False
- It crashes
Which rewrite keeps the meaning of not age < 13?
- age >= 13
- age <= 13
- age == 13
Which condition is true only for numbers from 5 to 9?
- n >= 5 or n <= 9
- not n >= 5
- n >= 5 and n <= 9
Entry needs cspGrade >= 75 or progGrade >= 75. When is a student in?
- Both grades reach 75
- At least one grade reaches 75
- Neither grade reaches 75
Which rewrite keeps the meaning of not (a > b)?
- a <= b
- a < b
- a == b
Mia writes if score = 10 when she means to compare scores. What happens?
- The program stores 10 instead of comparing
- The program compares correctly
- The program skips the line safely

Answer key

For grown-ups. Fold this page away before handing over the rest.

True · 12 is bigger than 10, so the comparison answers true.
True or False · A Boolean is a truth value, so only true or false fit.
True · and needs both sides true, and here both are true.
age >= 13 · Flipping under-13 gives 13 and up, which is >= 13.
n >= 5 and n <= 9 · Both halves must hold, so only and with both bounds works.
At least one grade reaches 75 · or needs only one side true, so one strong grade is enough.
a <= b · not bigger-than covers equal and smaller, which is <=.
The program stores 10 instead of comparing · One equals sign stores, so the test never really compares.