The offense runs the ball and gets 6 yards. On the next play, the quarterback gets sacked and loses 15 yards. Write a numeric expression for this situation and evaluate it.
What is -9?
100
25 + (-14)
What is 11
100
What does |a| tell you?
What is "the distance a is from zero"
200
-9+21=
What is 12
200
-7-4=
What is -11
200
As a scuba diver you descend 25 feet and stop. After a brief rest, you descend an additional 47 feet. Write a numerical expression to describe the distance you have traveled and evaluate it.
What is -72 feet?
200
-14 + (-14) =
What is -28
200
|17|=
What is 17
300
14+(-9)+(-20)=
What is -15
300
Write as addition:
-7-10=
What is -7+(-10)
300
A plane takes off and reaches 10,000 feet. A storm is coming, so the pilot descends to 4500 feet. Write a numeric expression to describe how high the plane is now and evaluate it.
What is 5500 feet?
300
What is the sum of two opposites?
What is 0?
300
|-1000|=
What is 1000
400
How do you add two same signed integers?
What is "add 'em & keep the sign"
400
Write as addition:
12-(-19)
What is 12+(+19)
400
Add and keep the sign.
What do you do when you add two numbers with the same sign?
400
1/2 and 2/1
What are reciprocals?
400
-|-9|=
What is -9
500
How do you add different signed integers?
What is "remember to subtract and keep the sign of the larger one"
500
Complete the statement:
Subtraction is ....
What is "addition of the opposite"
500
Subtract and keep the sign of the greatest absolute value.
What do you do when you add two numbers with different signs?