Distance and Expressions
a=2, b=-2
Solve
a+b+a
2
-7.824 + 23.5=
15.676
38.134 – 31.9=
6.234
abs(-8)
8
The distance a number is from zero
absolute value
a=2, b=-2
Solve
a-b-a
6
-14 + -8
-22
- 20 - (-4) =
-16
abs(8-10)
2
Only when _________ rational numbers we use "add the opposite".
When subtracting rational numbers we use "add the opposite".
a=2, b=-2
Solve
0
4 + (-3 1/2)
1/2
-3 3/4 - (-1/2)
-3 1/4
abs(8)-abs(-10)
-2
two numbers that are the same distance from zero but in opposite directions
opposites
Find the distance between -3.45 and 9
12.45
–33 + -4.5
-37.5
–3.37 – 9.668
-13.038
-abs(-7)
-7
When adding or subtracting fractions you must have
common denominators
Find the distance between 78.9 and -1
79.9
2 1/2 + (-6 2/3)
-4 1/6
5/6 - (-5 1/3)
6 1/6
-abs(8)-abs(-10)
-18
How do you find the distance between two numbers on a number line?
Subtract and take the absolute value.