Math 6 Unit 02 Notes - Decimals Worksheet Page 6
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19Math 6 Unit 02 Notes – Decimals
−
So both
3
and
3
equal 3 because the distance from zero is 3 units. It doesn’t matter which direction.
+ = since 5 is 5 units from 0.
5
5
−
= since –2.9 is 2.9 units to the
Examples:
2.9
2.9
-5 -4 -3 -2 -1
x
1
2
4
5
0
3
left of 0.
=
-5 -4 -3 -2 -1
x
since 2.9 is 2.9 units to the
0
1
2
3
4
5
2.9
2.9
right of 0.
−
=
=
=
−
=
19
19
0
0
936 936
257
257
=
−
=
−
=
−
=
0.5 0.5
0.8 0.8
2.3 2.3
0.375 0.375
=
= −
x =
Students need to understand that if
5
then x
5
and x
5 .
x = ±
We can write that as
5.
NVACS 6.NS.C.7b
Write, interpret, and explain statements of order for rational numbers in real-world
contexts.
Example: In a swimming race at the Summerlin’s Summer Events, 5 swimmers competed in the 100
meter race. The participants and their times are in the table below.
Racer
Time (min:sec)
Karl
: 2 18
Mike
: 2 06
Juan
: 2 10
Estaban
: 2 22
st
nd
rd
th
List the participants in the correct order for 1
place, 2
place, 3
place and 4
place.
Solution: Mike, Juan, Karl and Estaban
Example: In a car race, Elvin’s car finished in third place with a time of 56 minutes and
14 seconds. The table shows the times of the other racers as compared to Elvin’s
time.
Racer Time (min:sec)
+ : 0 18
Annie
− : 0 06
John
− : 0 10
Roy
Math 6 NOTES
Unit 02: Decimals
Page 6 of 19
2014-15 -NVACS
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