Challenge Problems
On a certain day, the temperature changed at a rate of -3 degrees Farenheit per hour. How long did it take for the change to be -33 degrees Farenheit?
11 Hours
Positive
Two positives are multiplied. Will the answer be positive or negative?
Positive.
A submarine was -103 feet below sea level. If it descended 3 times more feet, how far would it be below sea level?
-309 feet below sea level
Find the next two numbers in the pattern:
-14, 28, -56, 112
-224, 448
The pattern is to multiply by -2
Give three examples of non integers
pi, fractions, decimals
-50 x -40
Find the answer, and say if it is negative or positive.
2,000
Positive
Katie was diving. She started on sea level, then went 15 feet below. She then went 6 feet higher than she was, and then went 12 feet lower. Write an integer that represents where Katie is, right now, below sea level.
-21 feet below sea level
(-16/8) x (-20)
40
Define Opposite
Numbers that are the same distance from zero in opposite directions
Is Keep Change Change used when adding/subtracting integers, or when multiplying/dividing integers?
Adding/subtracting integers
If Angela digged a whole 15 feet below ground, and then piled up dirt in the whole halfway, how far would the hole be from ground?
-7.5 feet below ground
(80 times -15) divided by (-40 times -3)
-10
What is the difference between absolute value and opposites?
Absolute value is a number's distance from zero. However, opposites are two numbers that have the same distance from zero in opposite directions. Unlike opposites, the absolute value is ALWAYS positive.
(15 x -70) /-3
Will the answer be positive or negative?
Positive
Bradford took four tests this year. His grades were 79%, 92%, and 85%. If the opposite values (positive to negative) of all his test grades were combined, it would be -344. What was Bradford's fourth test grade thish year?
88