FRACTIONS
When you are solving a problem using fractions, what is the one thing you have to make sure you have?
Common Denominator
Solve: 2.6-7.3=?
-4.7
Solve: 8+ (-8)=?
0
When you subtract a negative number, what do you do?
When subtracting a negative number, it's adding the opposite of the number.
What is the definition of a negative number?
Numbers that are less than 0. They are located to the left of 0 on the horizontal number line.
Solve: 24 1/2 +4 1/3=?
28 5/6
Solve: 5.7-9.5=?
-3.8
Solve: 5+ (-7)=?
-2
Solve: -2-(-7)=?
5
What is the definition of a Positive Number?
Numbers that are greater than 0. They are located on to the right of 0 on the horizontal number line.
On Monday, the low tide is -1 1/2ft. On Tuesday, the low tide is -1 1/3. How does the low tide on Tuesday compare to the low tide on Monday?
1/6
Solve: An otter is swimming at -4.2yd relative to the surface of the water. It dives 8.6yd deeper. After the dive, what is the otter's elevation relative to the surface of the water?
-12.8yds
Write the equation & solve:
A football team loses 6 yards on their first play. They gain 8 yards on the next play.
-6+8=2 yards
Solve: 4-15=?
-11
What does Opposite Numbers mean?
Numbers that are the same distance from 0 on a number line, but in opposite directions.
Solve: 3 1/4 - 4 1/2=?
-5/4
Solve: -2.7-3.1=?
-5.8
Write this equation and solve:
A fishing hook is at an elevation of -12m relative to sea level. Half an hour later, the fishing hook's elevation increases by 12m.
-12+12=0
Solve: -2-7=?
-9
What is a Rational Number?
A number that can be expressed as a fraction a/b or the opposite of a/b.
Cece's dog loses 1 1/4lb. Then her dog loses another 1 1/8lb. What is the total change in her dogs weight?
1/8lb
Solve: -8.3 - (-5.4)=?
-2.9
Clara & Tyler are working on an activity in class. Clara stated that 17+(-6) and (-6)+17 have the same value. Tyler says that 8+(-8) & (-8)+ (-8) have the same value. Who is correct?
Solve: -15-9=?
-24
What is the definition of Absolute Value?
Number's distance from from 0 on a number line. Absolute Value is never negative.