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Negative Numbers
Today
Practice with what we learned in last lessons
-add and subtract negative numbers
What are today's learning intentions
- multiply positive and negative numbers
- divide positive and negative numbers
-
1 / 19
volgende
Slide 1:
Tekstslide
Wiskunde
Middelbare school
mavo, havo, vwo
Leerjaar 1
In deze les zitten
19 slides
, met
interactieve quizzen
en
tekstslides
.
Lesduur is:
45 min
Start les
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Onderdelen in deze les
Today
Practice with what we learned in last lessons
-add and subtract negative numbers
What are today's learning intentions
- multiply positive and negative numbers
- divide positive and negative numbers
-
Slide 1 - Tekstslide
What did we talk about last lesson?
How to
- add a negative number
- subtract a negative number
Slide 2 - Tekstslide
Where do we see negative numbers in our daily lives?
Slide 3 - Woordweb
Adding a negative number
3
+
−
4
=
A
-1
B
1
C
-7
D
7
Slide 4 - Quizvraag
Adding a negative number
3
−
−
4
=
A
7
B
1
C
-7
D
-1
Slide 5 - Quizvraag
Adding a negative number
−
3
+
−
4
=
A
-1
B
1
C
-7
D
7
Slide 6 - Quizvraag
Subtracting a negative number
−
3
−
−
4
=
A
-1
B
1
C
-7
D
7
Slide 7 - Quizvraag
Explanation multiplying negative numbers
Slide 8 - Woordweb
Rules for multiplication
When multiplying two numbers with the
same
signs
, the answer is always
positive.
When multiplying two numbers with
different
signs,
the answer is always
negative.
Slide 9 - Tekstslide
Multiplying numbers
-5 x -4 =
A
20
B
-20
Slide 10 - Quizvraag
Multiplying numbers
7 x -4 =
A
-28
B
28
Slide 11 - Quizvraag
Multiplying numbers
-5 x 0 =
A
-5
B
0
Slide 12 - Quizvraag
Explanation dividing negative numbers
Slide 13 - Woordweb
Rules for division
When dividing two numbers with the
same
sign, the answer is always
positiv
e.
When dividing two numbers with
different
signs, the answer is always
negative.
Slide 14 - Tekstslide
a negative number divided by a positive number equals
A
a positive number
B
a negative number
Slide 15 - Quizvraag
Dividing numbers
-28 : -4 =
A
-7
B
7
Slide 16 - Quizvraag
Dividing numbers
-7 : 1 =
A
-7
B
7
C
-1
D
1
Slide 17 - Quizvraag
Lesson evaluation
Are you now able to multiply and divide negative numbers?
😒
🙁
😐
🙂
😃
Slide 18 - Poll
Let's do some exercises
Slide 19 - Tekstslide
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