igsce maths divide a negative by a positive - PowerPoint PPT Presentation

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igsce maths divide a negative by a positive

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how to divide a negative by a positive using a number line – PowerPoint PPT presentation

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Title: igsce maths divide a negative by a positive


1
divide negative number by a positive number
using a number line
2
in this lesson
we show how to divide a negative by a positive
number using a number line
you also do an exercise dividing a negative by a
positive number using a number line
3
how do we divide?
dividing by 4
dividing by a positive number
dividing by -4
dividing by a negative number
4
make divisions from 0
examples
ve
-ve
facing the negative
division size 4
follow the arrows
-3
-1
-2
when dividing we get answer by counting
counting backwards answer is negative
5
make divisions from 0
examples
ve
-ve
facing the negative
division size 7
follow the arrows
-2
-1
when dividing we get answer by counting
counting backwards answer is negative
6
lets do together
7
make divisions from 0
working
ve
-ve
facing the negative
division size 2
follow the arrows
-1
-8
-9
-2
-4
-3
-6
-7
-5
when dividing we get answer by counting
counting backwards answer is negative
8
make divisions from 0
working
ve
-ve
facing the negative
division size 4
follow the arrows
-2
-1
when dividing we get answer by counting
counting backwards answer is negative
9
in the next exercise
you need
a number line
10
exercises
evaluate the following
1.
2.
3.
4.
5.
6.
11
answers
evaluate the following
1.
2.
3.
4.
5.
6.
12
make divisions from 0
working
1.
ve
-ve
facing the negative
division size 2
follow the arrows
-2
-1
-3
-4
-5
-6
when dividing we get answer by counting
counting backwards answer is negative
13
make divisions from 0
working
2.
ve
-ve
facing the negative
division size 2
follow the arrows
-3
-2
-4
-5
-6
-8
-1
-7
when dividing we get answer by counting
counting backwards answer is negative
14
make divisions from 0
working
3.
ve
-ve
facing the negative
division size 5
follow the arrows
-2
-3
-1
when dividing we get answer by counting
counting backwards answer is negative
15
make divisions from 0
working
4.
ve
-ve
facing the negative
division size 2
follow the arrows
-3
-4
-5
-1
-2
-6
-7
when dividing we get answer by counting
counting backwards answer is negative
16
make divisions from 0
working
5.
ve
-ve
facing the negative
division size 4
follow the arrows
-3
-5
-1
-2
-4
when dividing we get answer by counting
counting backwards answer is negative
17
make divisions from 0
working
6.
ve
-ve
facing the negative
division size 7
follow the arrows
-3
-2
-1
when dividing we get answer by counting
counting backwards answer is negative
18
(No Transcript)
19
make divisions from -20
working
ve
-ve
division size 4
facing the negative
-4
-1
-3
-5
-2
when dividing we get answer by counting
counting backward answer is negative
20
summary
we showed how to divide a negative by a positive
number using a number line
you also did an exercise dividing a negative by
a positive number using a number line
21
more free maths lessons
at
igscemaths24.thinkific.com
22
working
in this lesson
in this lesson
23
in this lesson
in this lesson
24
working
make divisions from 0
1.
facing the positive
division size 4
5
3
1
2
4
when dividing we get answer by counting
counting forward answer is positive
25
working
1.
make divisions from 20
1
2
3
4
5
when dividing we get answer by counting
counting forward answer is positive
26
working
make divisions from -20
1.
division size 4
facing the negative
-4
-1
-3
-5
-2
when dividing we get answer by counting
counting backward answer is negative
27
working
make divisions from -20
1.
facing the negative
division size -4
5
3
2
4
1
when dividing we get answer by counting
counting forward answer is positive
28
working
make divisions from 0
1.
facing the positive
division size -4
-5
-4
-3
-2
-1
when dividing we get answer by counting
counting backward answer is negative
29
working
1.
5 x 4
move 5 steps
step size 4
forward
5 x 4
20
answer from number line
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