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WELCOME……..
INNOVATIVE LESSON 
TEMPLATE
Negative Numbers 
by chandini sivan 
B.Ed mathematics 
Reg. no 13304003 
N.S.S Training college, 
pandalam
Definition 
• Negative number – a number 
less than zero. 
-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6
Definition 
• Opposite Numbers – numbers 
that are the same distance from 
zero in the opposite direction 
-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6
Definition 
• Integers – Integers are all the 
whole numbers and all of their 
opposites on the negative 
number line including zero. 
7 opposite -7
Negative Numbers Are Used to 
Measure Temperature
Negative Numbers Are Used to 
Measure Under Sea Level 
30 
20 
10 
0 
-10 
-20 
-30 
-40 
-50
Hint 
• If you don’t see a negative or 
positive sign in front of a 
number it is positive. 
+ 9
Integer Addition Rules 
• Rule #1 – If the signs are the 
same, pretend the signs aren’t 
there. Add the numbers and then 
put the sign of the addends in front 
of your answer. 
9 + 5 = 14 
-9 + -5 = -14
Solve the Problems 
• -3 + -5 = 
• 4 + 7 = 
• (+3) + (+4) = 
• -6 + -7 = 
• 5 + 9 = 
• -9 + -9 = 
-8 
11 
7 
-13 
14 
-18
Integer Addition Rules 
• Rule #2 – If the signs are different 
pretend the signs aren’t there. 
Subtract the smaller from the 
larger one and put the sign of the 
larger one in front of your answer. 
-9 + +5 = 
Larger number 
9 - 5 = 4 
Answer = - 4
Solve These Problems 
• 3 + -5 = 
• -4 + 7 = 
• (+3) + (-4) = 
• -6 + 7 = 
• 5 + -9 = 
• -9 + 9 = 
5 – 3 = 2 -2 
3 
-1 
1 
-4 
0 
7 – 4 = 3 
4 – 3 = 1 
7 – 6 = 1 
9 – 5 = 4 
9 – 9 = 0
One Way to Add Integers Is With 
a Number Line 
When the number is positive count 
to the right. 
When the number is negative count 
to the left. 
- + 
-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6
One Way to Add Integers Is With 
a Number Line 
+3 + -5 = -2 
+ 
-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 
-
One Way to Add Integers Is With 
a Number Line 
-2 + +8 = +6 
- 
-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 
+
One Way to Add Integers Is With 
a Number Line 
- 
-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 
+ 
-5 + +2 = -3
One Way to Add Integers Is With 
a Number Line 
- 
-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 
- 
-4 + -2 = -6
One Way to Add Integers Is With 
a Number Line 
- 
-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 
- 
-2 + -3 = -5
One Way to Add Integers Is With 
a Number Line 
-1 + -4 = -5 
- 
-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 
-
One Way to Add Integers Is With 
a Number Line 
- 
-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 
- 
-4 + -1 = -5
One Way to Add Integers Is With 
a Number Line 
+ 
-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 
+ 
4 + 1 = 5
One Way to Add Integers Is With 
a Number Line 
+ 
-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 
+ 
3 + 2 = 5
One Way to Add Integers Is With 
a Number Line 
+ 
-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 
+ 
1 + 5 = 6
Thank you………

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Cha

  • 3. Negative Numbers by chandini sivan B.Ed mathematics Reg. no 13304003 N.S.S Training college, pandalam
  • 4. Definition • Negative number – a number less than zero. -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6
  • 5. Definition • Opposite Numbers – numbers that are the same distance from zero in the opposite direction -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6
  • 6. Definition • Integers – Integers are all the whole numbers and all of their opposites on the negative number line including zero. 7 opposite -7
  • 7. Negative Numbers Are Used to Measure Temperature
  • 8. Negative Numbers Are Used to Measure Under Sea Level 30 20 10 0 -10 -20 -30 -40 -50
  • 9. Hint • If you don’t see a negative or positive sign in front of a number it is positive. + 9
  • 10. Integer Addition Rules • Rule #1 – If the signs are the same, pretend the signs aren’t there. Add the numbers and then put the sign of the addends in front of your answer. 9 + 5 = 14 -9 + -5 = -14
  • 11. Solve the Problems • -3 + -5 = • 4 + 7 = • (+3) + (+4) = • -6 + -7 = • 5 + 9 = • -9 + -9 = -8 11 7 -13 14 -18
  • 12. Integer Addition Rules • Rule #2 – If the signs are different pretend the signs aren’t there. Subtract the smaller from the larger one and put the sign of the larger one in front of your answer. -9 + +5 = Larger number 9 - 5 = 4 Answer = - 4
  • 13. Solve These Problems • 3 + -5 = • -4 + 7 = • (+3) + (-4) = • -6 + 7 = • 5 + -9 = • -9 + 9 = 5 – 3 = 2 -2 3 -1 1 -4 0 7 – 4 = 3 4 – 3 = 1 7 – 6 = 1 9 – 5 = 4 9 – 9 = 0
  • 14. One Way to Add Integers Is With a Number Line When the number is positive count to the right. When the number is negative count to the left. - + -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6
  • 15. One Way to Add Integers Is With a Number Line +3 + -5 = -2 + -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 -
  • 16. One Way to Add Integers Is With a Number Line -2 + +8 = +6 - -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 +
  • 17. One Way to Add Integers Is With a Number Line - -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 + -5 + +2 = -3
  • 18. One Way to Add Integers Is With a Number Line - -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 - -4 + -2 = -6
  • 19. One Way to Add Integers Is With a Number Line - -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 - -2 + -3 = -5
  • 20. One Way to Add Integers Is With a Number Line -1 + -4 = -5 - -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 -
  • 21. One Way to Add Integers Is With a Number Line - -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 - -4 + -1 = -5
  • 22. One Way to Add Integers Is With a Number Line + -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 + 4 + 1 = 5
  • 23. One Way to Add Integers Is With a Number Line + -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 + 3 + 2 = 5
  • 24. One Way to Add Integers Is With a Number Line + -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 + 1 + 5 = 6