Addition
This is the difference between 4 and -6.
4 - (-6)
What is 10?
...-3, -2, -1, 0, 1, 2, 3...
What is an integer?
Add the numbers and keep the sign.
What is the rule for adding two same signed rational numbers?
-0.5 + 3.75
What is 3.25?
The amount Lynn has in her Dojo account if she begins with -50 points and then earns 22 Dojo points for participation.
What is -28?
This is a submarine's location relative to the surface if it begins at -28 feet and then dives 40 more feet.
What is -68 feet?
...-3.5, -3, -2.5, -2, -1.5, -1, -0.5, 0, 0.5, 1, 1.5, 2, 2.5, 3, 3.5...
What is a rational number?
Subtract the absolute values of the numbers and take the sign of the greater absolute value.
What is the rule for adding two rational numbers with different signs?
6 1/8 + (-2 3/4)
(Answer using a simplified mixed number.)
What is 3 3/8?
This is the temperature in Boston at noon if in the morning it was -12oF and by noon, the temperature had risen 8oF.
What is -40F?
This integer is the distance between a seagull flying 45 feet above sea level and a fish swimming 12 feet below sea level.
What is 57?
The distance a number is from zero.
What is absolute value?
The sign of the sum of -45 and 12.
What is negative?
-12.7 - (-7.35)
What is -5.35?
This is the sum of -4 and -45
What is -49?
This is the answer to the following problem: 46 - (-44)
What is 90?
Sum and Difference
What is the answer to an addition problem and what is the answer to a subtraction problem?
The sign of the difference between -23 and -35.
-23 - (-35)
What is positive?
The balance when Joe deposits $115.60 into an account that was $40.78 in debt.
What is $74.82?
This integer is the total yards the Philadelphia Eagles have when they lose 8 yards on their first play and then lose 14 yards on their second play.
What is -22?
The temperature when it starts at 3ºF below zero and drops 18ºF.
What is -21oF?
Another word to describe a submarine going down.
What is descend?
Change subtraction to addition of the opposite number and then follow addition rules.
What is the rule for subtracting rational numbers?
9.04 - 2.13 - 13.357
What is -6.447?