Signed Numbers
Opposites
Absolute Numbers
Add/Subtract
Rational Numbers
Rational Numbers
Solve
100
Negative numbers are numbers _________ than zero. They are to the __________ of zero.
less, left
100
What are opposite numbers?
Two numbers that are the same distance from zero in opposite directions on a number line.
100
The absolute value of a number is the __________ from that number to 0 on the number line.
distance
100
If the second number in an addition problem is positive, move to the __________ on the number line.
right
100
What is the opposite of 7?
-7
200
Negative numbers are _____________ represented with a ____________ sign.
always, negative (-)
200
Opposite numbers are the same __________ from zero on a number line, but on the __________ __________ of zero.
distance, opposite side
200
The distance is always/sometimes/never negative.
never
200
If the second number in an addition problem is negative, move to the ______ on the number line.
left
200
Absolute value numbers are represented by what?
Bars or lines around the number |7|
300
Positive numbers are numbers _________ than zero. They are to the ____________ of zero.
greater, right
300
Opposite numbers are the same ________ but different _________.
number, sign
300
When you compare two numbers on a number line, the one to the __________ is always greater.
right
300
What are the four steps to solving addition problems with negative numbers on a number line?
–5 + (–3).
1. Identify the ____________ ___________.
2. Identify the ____________ of movement.
3. Identify the _________ _________ of the second number.
4. Identify the _________.
1. Starting point. (-5)
2. Direction (left)
3. Absolute value (distance from zero of -3=3 units)
4. Sum (-8)
From the starting point of -5, move 3 units to the left for the sum of -8.
300
Fill in the Table:
Answer Bonus
400
Positive numbers are _______________ represented with a ____________ sign.
sometimes, positive (+)
400
To find the opposite of a number, change the number's ________.
sign
400
When you compare magnitudes, the one ________ from 0 has the greater magnitude.
further
400
What are additive inverses?
They are opposite numbers.
400
A football team gained possession of the ball on their own 30 yard line. They lost 12 yards on the first down. On the second down they gained 4 yards back. On the third down, they gained 16 yards. What yard did they end on?
Their own 38 yard line.
Bonus for Daily Double:
Did they make the first down?
500
Zero is considered ____________.
Baseline
500
The opposite of zero is .....
zero
500
The greater number [always has/might not have] the greater absolute value.
might not have
500
The temperature at 11 a.m. in Minneapolis is 2°F. In International Falls it is –3°F. Use the number line to answer the questions.
1. Which temperature is greater?
2. Find the absolute value of each temperature value.
3. Which temperature is farther from 0°F?
4. Which has the greatest magnitude?
1. 2°F (Minneapolis)
2. |2| = 2; |–3| = 3
3. –3°F (International Falls)
4. –3°F (International Falls)
500
Plot the following on the number line and answer the following questions:
1. What is the highest temperature on Tuesday?
2. What was the temperature on Wednesday morning?
1. 2 degrees
2. -3 degrees