1. STD-7,Sub-MATHS,CH-2,Day-3
Word-1 Interger
B / In- te- ger
P / In- te- ger
M/ a number which is not a fraction; a whole number.
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

2. STD-7,Sub-MATHS,CH-2,Day-3
Word-1 Interger
A / As really denoted any integer or whole; whence the English word "ace."
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

3. STD-7,Sub-MATHS,CH-2,Day-3
Word-2 Neutral
B / Neu- tral
P / Neu-tral
M/ not supporting or helping either side in a conflict, disagreement, etc.; impartial.
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

4. STD-7,Sub-MATHS,CH-2,Day-3
Word-2 Neutral
A / He was the only neutral party among our father.s sons.
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

5. STD-7,Sub-MATHS,CH-2,Day-3
Home work
On page number-16 Exercise question-1 and 2 ?
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

6. Rules for Multiplying Integers (x)
The product of two integers with the same signs is POSITIVE.
The product of two integers with different signs is NEGATIVE.
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

7. Rules Summary for Multiplication
Positive x Positive = Positive
Negative x Negative = Positive
Positive x Negative= Negative
Negative x Positive = Negative
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

8. Let’s Practice “Multiplication”
1) 6 x (-3) =
2) 3 x 3 =
3) -4 x 5 =
4) -6 x (-2) =
5) -7 x (-8) =
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

9. STD-7,Sub-MATHS,CH-2,Day-3
Let’s Check
1) 6 x (-3) = -18
2) 3 x 3 = 9
3) -4 x 5 = -20
4) -6 x (-2) = 12
5) -7 x (-8) = 56
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

10. STD-7,Sub-MATHS,CH-2,Day-3
Did you know that the rules for multiplication and division are the same?
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

11. STD-7,Sub-MATHS,CH-2,Day-3
Guess what….
They are!
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

12. STD-7,Sub-MATHS,CH-2,Day-3
The rules for division are exactly the same as those for multiplication.
If we were to take the rules for multiplication and change the multiplication signs to division signs, we would have an accurate set of rules for division.
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

13. Rules for Dividing Integers (÷)
The quotient of two integers with the same signs is POSITIVE.
The quotient of two integers with different signs is NEGATIVE.
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

14. Rules Summary for Division
Positive ÷ Positive = Positive
Negative ÷ Negative = Positive
Positive ÷ Negative= Negative
Negative ÷ Positive = Negative
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

15. Let’s Practice “Division”
1) 18 ÷ (-2) =
2) -48 ÷ (-6) =
3) -27 ÷ 9 =
4) 64 ÷ 8 =
5) 30 ÷ (-5) =
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

16. STD-7,Sub-MATHS,CH-2,Day-3
Let’s Check
1) 18 ÷ (-2) = -9
2) -48 ÷ (-6) = 8
3) -27 ÷ 9 = -3
4) 64 ÷ 8 = 8
5) 30 ÷ (-5) = -6
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

17. STD-7,Sub-MATHS,CH-2,Day-3
Let’s Review…
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

18. STD-7,Sub-MATHS,CH-2,Day-3
What is an integer?
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

19. STD-7,Sub-MATHS,CH-2,Day-3
ANSWER
An integer is a positive or negative whole number, including 0.
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

20. Can you give an example of an integer?
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

21. STD-7,Sub-MATHS,CH-2,Day-3
ANSWER
…-3, -2, -1, 0, 1, 2, 3…
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

22. What are the four operations?
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

23. STD-7,Sub-MATHS,CH-2,Day-3
ANSWER
The four operations are: addition, subtraction, multiplication, and division.
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

24. How do you multiply integers?
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

25. STD-7,Sub-MATHS,CH-2,Day-3
ANSWER
If the signs are the same, your answer is always positive.
If the signs are different, your answer is always negative.
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

26. How do you divide integers?
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

27. STD-7,Sub-MATHS,CH-2,Day-3
ANSWER
If the signs are the same, your answer is always positive.
If the signs are different, your answer is always negative.
*Multiplication and Division Rules are the same!
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

28. STD-7,Sub-MATHS,CH-2,Day-3
Word-1 Inverse
B / In- verse
P/ In- verse
M / opposite or contrary in position, direction, order, or effect.
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

29. STD-7,Sub-MATHS,CH-2,Day-3
Word-1 Inverse
A / In general theory the inverse rule seems to prevail.
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

30. STD-7,Sub-MATHS,CH-2,Day-3
Word-2 Order
B / Or-der
P / Or-der
M / the arrangement or disposition of people or things in relation to each other according to a particular sequence, pattern, or method.
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

31. STD-7,Sub-MATHS,CH-2,Day-3
Word-2 Order
A / He made a purchase using the card earlier, just to make sure there wasn't a stop order on it.
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

32. STD-7,Sub-MATHS,CH-2,Day-3
Home work
On page number-16 Exercise question-4 and 3 ?
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges

33. STD-7,Sub-MATHS,CH-2,Day-315 10 6
The End -7 -9 3 -8
STD-7,Sub-MATHS,CH-2,Day-3
Gajwani Schools & Colleges