thilini pabasarra
Presentation
•
Mathematics
•
8th Grade
•
Hard
Thilini Pabasara
FREE Resource
3 Slides • 4 Questions
1
MR/POLWATHUMODARA MAHA VIDYALAYA
DIRECTED NUMBERS
2
Directed numbers are integers which have a particular size/magnitude and a direction (positive + or negative -)
EX: (+3) , (-3) , (+10)
What are Directed Numbers?
MR/POLWATHUMODARA MAHA VIDYALAYA
Introduction of Directed Numbers
3
ADDITION DIRECT NUMBERS
(+3) + (+5) = (+8)
(-3) + (-5) = (-8)
(-3)+ (+5) = (+2)
(-5)+ (+3) = (-2)
MR/POLWATHUMODARA MAHA VIDYALAYA
4
Multiple Choice
(+7) +(+18)
10
11
25
32
5
Multiple Choice
(-20) + (-15)
-5
+5
-40
-35
6
Multiple Choice
(-25) + (+16) + (-1)
-10
-42
-40
+10
7
Fill in the Blanks
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MR/POLWATHUMODARA MAHA VIDYALAYA
DIRECTED NUMBERS
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