Math 6 Unit 02 Notes - Decimals Worksheet Page 5
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19Math 6 Unit 02 Notes – Decimals
−
−
are opposites
1 5 and
.
1 5
.
2 75 and 2 75
.
.
are opposites
-3
-2
-1
1
2
x
-3
-2
-1
x
0
3
0
1
2
3
5? − 7?
− 1.75?
What is the opposite of 0?
0.75?
2.9?
− 5
− 0.75
− 2.9
Answers
0
7
1.75
And now just to see if you are paying attention let me ask,…
What is the opposite of 2.5?
− 2.5 = − 2.5
What is the opposite of − 2.5?
− ( − 2.5) = 2.5
“What is the opposite of the opposite of 4?” We could write this as
−
( − 2.5) =
2.5
What is the opposite of the opposite of − 4?” We could write this as
−
− ( − 2.5)
−
= − 2.5
2.5
NVACS 6.NS.C.7
Understand ordering and absolute value of rational numbers.
NVACS 6.NS.C.7c
Understand the absolute value of a rational number as its distance from 0 on the number
line; interpret absolute value as magnitude for a positive or negative quantity in a real-world
situation.
Absolute Value
– is the distance from 0 on a number line.
− = since –3 is 3 units to the left of 0.
Examples:
3
3
= since 3 is 3 units to the right of 0.
3
3
Math 6 NOTES
Unit 02: Decimals
Page 5 of 19
2014-15 -NVACS
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