Lesson 4 - Operators

Why does this code produce an error?
print "84" - "23"
1. It works fine and prints 61!
2. The data types are mixed
3. - can not be applied to strings
Why does the following code produce an error?
print 10 - "62"
1. It works fine and prints -52
2. The data types are mixed
3. - can not be applied to strings
What will be the output of the following code?
print -1 * 2 + 3
1. 1
2. -5
3. 5
4. -2
Will the output print?
if 7 + 1 > 3 - 1:
print "hello"
1. Yes, 8 is greater than 2
2. No, 1 is not bigger than 3
3. No, it will not compile
4. No, 8 is not bigger that 31
What will this code print?
x = 2
x = x == 3
print x
1. true
2. false
3. 3
4. 2
What is the output of the following code?
print -(6 * 2 - 3) + -6 * 2 - 3
1. It will cause an error
2. -3
3. -30
4. -24
What is the output of the code below?
x = 5
print x * 2 + x * 4
1. Will cause an error
2. 30
3. 140
4. 65
Which of the following has the highest precedence?
1. -10
2. 10 - 2
3. 10 * 2
4. 10 > 2
How could the code below be fixed?
x = "87"
y = 12
if x > y:
print "hi"
1. if str(x) > str(y)
2. if int(x) > int(y)
3. if x > int(y)
4. if str(x) > y
A student needs to create a variable to store the number of cookies eaten by mr Hamflett. What would be the best variable name to use?
1. cookie
2. x
3. mrHamflett
4. numberCookiesEaten